Revert "Issue #3072312 by jhodgdon, Amber Himes Matz, andypost, webchick:...

Revert "Issue #3072312 by jhodgdon, Amber Himes Matz, andypost, webchick: Review/fix/delete existing help topics"

This reverts commit 24a6e3d3.

core/modules/help_topics/help_topics/contextual.overview.html.twig

----
-label: 'Using contextual links'
-related:
-  - core.ui_components
----
-<h2>{% trans %}Goal{% endtrans %}</h2>
-<p>{% trans %}Use contextual links to access administrative tasks without navigating the administrative menu.{%
-  endtrans %}</p>
-<h2>{% trans %}What are contextual links?{% endtrans %}</h2>
-<p>{% trans %}<em>Contextual links</em> give users with the <em>Use contextual links</em> permission quick access to administrative tasks related to areas of non-administrative pages. For example, if a page on your site displays a block, the block would have a contextual link that would allow users with permission to configure the block. If the block contains a menu or a view, it would also have a contextual link for editing the menu links or the view. Clicking a contextual link takes you to the related administrative page directly, without needing to navigate through the administrative menu system.{% endtrans %}</p>
-<h2>{% trans %}Steps{% endtrans %}</h2>
-<ol>
-  <li>{% trans %}Make sure that the core Contextual Links module is installed, and that you have a role with the <em>Use contextual links</em> permission. Optionally, make sure that a toolbar module is installed (either the core Toolbar module or a contributed module replacement).{% endtrans %}</li>
-  <li>{% trans %}Visit a non-administrative page on your site, such as the home page.{% endtrans %}</li>
-  <li>{% trans %}Locate a block or another area on the page that you want to edit or configure.{% endtrans %}</li>
-  <li>{% trans %}Make the contextual links button visible by hovering your mouse over that area in the page. In most themes, this button looks like a pencil and is placed in the upper right corner of the page area (upper left for right-to-left languages), and hovering will also temporarily outline the affected area. Alternatively, click the contextual links toggle button on the right end of the toolbar (left end for right-to-left languages), which will make all contextual link buttons on the page visible until it is clicked again.{% endtrans %}</li>
-  <li>{% trans %}While the contextual links button for the area of interest is visible, click the button to display the list of links for that area. Click a link in the list to visit the corresponding administrative page.{% endtrans %}</li>
-  <li>{% trans %}Complete your administrative task and save your settings, or cancel the action. You should be returned to the page you started from.{% endtrans %}</li>
-</ol>

core/modules/help_topics/help_topics/core.config_basic.html.twig

+---
+label: 'Changing basic site settings'
+top_level: true
+related:
+  - user.security_account_settings
+---
+{% set regional_url = render_var(url('system.regional_settings')) %}
+{% set information_url = render_var(url('system.site_information_settings')) %}
+{% set datetime_url = render_var(url('entity.date_format.collection')) %}
+<p>{% trans %}The settings for your site are configured on various administrative pages, as follows:{% endtrans %}</p>
+<dl>
+  <dt>{% trans %}Site name, slogan, and email address{% endtrans %}</dt>
+  <dd>{% trans %}On the <a href="{{ information_url }}"><em>Basic site settings</em></a> page, which you can reach in the main <em>Manage</em> administrative menu, by navigating to <em>Configuration</em> &gt; <em>System</em> &gt; <em>Basic site settings</em>.{% endtrans %}</dd>
+  <dt>{% trans %}Time zone and country{% endtrans %}</dt>
+  <dd>{% trans %}On the <a href="{{ regional_url }}"><em>Regional settings</em></a> page, which you can reach in the main <em>Manage</em> administrative menu, by navigating to <em>Configuration</em> &gt; <em>Regional and language</em> &gt; <em>Regional settings</em>.{% endtrans %}</dd>
+  <dt>{% trans %}Date and time formats{% endtrans %}</dt>
+  <dd>{% trans %}On the <a href="{{ datetime_url }}"><em>Date and time formats</em></a> page, which you can reach in the main <em>Manage</em> administrative menu, by navigating to <em>Configuration</em> &gt; <em>Regional and language</em> &gt; <em>Date and time formats</em>.{% endtrans %}</dd>
+</dl>

core/modules/help_topics/help_topics/core.config_error.html.twig

+---
+label: 'Configuring error responses, including 403/404 pages'
+related:
+  - core.config_basic
+  - core.maintenance
+---
+{% set log_settings_url = render_var(url('system.logging_settings')) %}
+{% set site_settings_url = render_var(url('system.site_information_settings')) %}
+<h2>{% trans %}Configuring 403/404 pages{% endtrans %}</h2>
+<p>{% trans %}The core software provides default responses for 403 response (Not Authorized: when someone tries to visit a page they do not have permission to see) and 404 response (Not Found: when someone tries to visit a page that does not exist). You can change what page is displayed for these responses on the <a href="{{ site_settings_url }}"><em>Basic site settings</em></a> page, which you can reach in the main <em>Manage</em> administrative menu, by navigating to <em>Configuration</em> &gt; <em>System</em> &gt; <em>Basic site settings</em>. Note that the pages you want to use must already exist as either system-provided pages or content that you have created.{% endtrans %}</p>
+<h2>{% trans %}Responding to software errors{% endtrans %}</h2>
+<p>{% trans %}Software errors on your site are logged, if you have a logging module installed (such as the core Database Logging module or the core Syslog module). You can configure whether or not error messages are also shown (to both administrators and other site visitors) on the <a href="{{ log_settings_url }}"><em>Logging and errors</em></a> configuration page, which you can reach in the main <em>Manage</em> administrative menu, by navigating to <em>Configuration</em> &gt; <em>Development</em> &gt; <em>Logging and errors</em>.{% endtrans %}</p>
+<h2>{% trans %}Viewing the site log{% endtrans %}</h2>
+<p>{% trans %}If you have the core Database Logging module installed, you can view recent error and informational messages by navigating in the main <em>Manage</em> administrative menu to <em>Reports</em> &gt; <em>Recent log messages</em>. If you are using the core Syslog module for logging, error messages will be logged in your web server''s log files.{% endtrans %}</p>

core/modules/help_topics/help_topics/core.maintenance.html.twig

+---
+label: 'Maintaining and troubleshooting your site'
+top_level: true
+---
+<p>{% trans %}The related topics listed here will help you keep your site running and troubleshoot problems.{% endtrans %}</p>

core/modules/help_topics/help_topics/core.menu_overview.html.twig

+---
+label: 'Defining navigation and URLs'
+top_level: true
+---
+<p>{% trans %}The related topics listed here describe how to set up various aspects of site navigation and URLs.{% endtrans %}</p>

core/modules/help_topics/help_topics/core.security.html.twig

 ---
 label: 'Making your site secure'
 top_level: true
+related:
+  - core.menu_overview
 ---
-<h2>{% trans %}What are security updates?{% endtrans %}</h2>
-<p>{% trans %}Any software occasionally has bugs, and sometimes these bugs have security implications. When security bugs are fixed in the core software, modules, or themes that your site uses, they are released in a <em>security update</em>. You will need to apply security updates in order to keep your site secure.{% endtrans %}</p>
-<h2>{% trans %}Security tasks{% endtrans %}</h2>
-<p>{% trans %}Keeping track of updates, updating the core software, and updating contributed modules and/or themes are all part of keeping your site secure. See the related topics listed below for specific tasks.{% endtrans %}</p>
-<h2>{% trans %}Additional resources{% endtrans %}</h2>
-<ul>
-    <li>{% trans %}<a href="https://www.drupal.org/docs/user_guide/en/security-chapter.html">Drupal 8 User Guide: Chapter 13. Security and Maintenance</a>{% endtrans %}</li>
-</ul>
+<p>{% trans %}The topics listed here will help you make and keep your site secure.{% endtrans %}</p>

core/modules/help_topics/help_topics/core.ui_accessibility.html.twig

 ---
-label: 'Accessibility of the administrative interface'
+label: 'Accessibility features'
 related:
   - core.ui_components
 ---
-<h2>{% trans %}Overview of accessibility{% endtrans %}</h2>
-<p>{% trans %}The core administrative interface has built-in compliance with many accessibility standards, so that most pages are accessible to most users in their default state. However, certain pages become more accessible to some users through the use of a non-default interface. These replacement interfaces include:{% endtrans %}</p>
+<p>{% trans %}The following features of the administrative user interface may help administrative users with disabilities access your site:{% endtrans %}</p>
 <dl>
   <dt>{% trans %}Disabling drag-and-drop functionality{% endtrans %}</dt>
-  <dd>{% trans %}The default drag-and-drop user interface for ordering tables in the administrative interface presents a challenge for some users, including keyboard-only users and users of screen readers and other assistive technology. The drag-and-drop interface can be disabled in a table by clicking a link labeled <em>Show row weights</em> above the table. The replacement interface allows users to order the table by choosing numerical weights (with increasing numbers) instead of dragging table rows.{% endtrans %}</dd>
+  <dd>{% trans %}The default drag-and-drop user interface for ordering tables in the administrative interface presents a challenge for some users, including users of screen readers and other assistive technology. The drag-and-drop interface can be disabled in a table by clicking a link labeled <em>Show row weights</em> above the table. The replacement interface allows users to order the table by choosing numerical weights instead of dragging table rows.{% endtrans %}</dd>
 </dl>

core/modules/help_topics/help_topics/core.ui_components.html.twig

@@ -2,15 +2,4 @@
 label: 'Using the administrative interface'
 top_level: true
 ---
-<h2>{% trans %}Administrative interface overview{% endtrans %}</h2>
-<p>{% trans %}The administrative interface has several components:{% endtrans %}</p>
-<ul>
-  <li>{% trans %}Accessibility features, to enable all users to perform administrative tasks.{% endtrans %}</li>
-  <li>{% trans %}A menu system, which you can navigate to find pages for administrative tasks. The core Toolbar module displays this menu on the top or left side of the page (right side in right-to-left languages). There are also contributed module replacements for the core Toolbar module, with additional features, such as the <a href="https://www.drupal.org/project/admin_toolbar">Admin Toolbar module</a>.{% endtrans %}</li>
-  <li>{% trans %}The core Shortcuts module enhances the toolbar with a configurable list of links to commonly-used tasks.{% endtrans %}</li>
-  <li>{% trans %}If you install the core Contextual Links module, non-administrative pages will contain links leading to related administrative tasks.{% endtrans %}</li>
-  <li>{% trans %}The core Help module displays help topics, and provides a Help block that can be placed on administrative pages to provide an overview of their functionality.{% endtrans %}</li>
-  <li>{% trans %}The core Tour module allows modules to provide interactive tours of administrative pages for more detailed help.{% endtrans %}</li>
-</ul>
-
-<p>{% trans %}See the related topics listed below for specific tasks.{% endtrans %}</p>
+<p>{% trans %}The related topics listed here describe various aspects of the administrative interface, and tell how to use them.{% endtrans %}</p>

core/modules/help_topics/help_topics/core.ui_contextual.html.twig

+---
+label: 'Contextual links'
+related:
+  - core.ui_components
+---
+<h2>{% trans %}What are contextual links?{% endtrans %}</h2>
+<p>{% trans %}<em>Contextual links</em> give users with the <em>Use contextual links</em> permission quick access to administrative tasks related to areas of non-administrative pages. For example, if a page on your site displays a block, the block would have a contextual link that would allow users with permission to configure the block. If the block contains a menu or a view, it would also have a contextual link for editing the menu links or the view. Clicking a contextual link takes you to the related administrative page directly, without needing to navigate through the administrative menu system.{% endtrans %}</p>
+<h2>{% trans %}Displaying and using contextual links{% endtrans %}</h2>
+<p>{% trans %}If you have the core Contextual Links module installed, the contextual links related to an area on a page can be displayed by clicking the contextual links button in that area of the page. In most themes, this button looks like a pencil and is placed in the upper right corner of the page area (upper left for right-to-left languages); however, contextual links buttons are normally hidden. Here are two ways to make contextual links buttons visible:{% endtrans %}</p>
+<ul>
+  <li>{% trans %}Hovering your mouse over an area on the page will temporarily make the contextual links button visible, if there is one for that area of the page. Also, in most themes, the page area that the contextual links pertain to will be outlined while you are hovering.{% endtrans %}</li>
+  <li>{% trans %}If you have the core Toolbar module enabled, there will be a contextual links toggle button at the far right end of the toolbar (far left end for right-to-left languages; this button looks like a pencil in most themes). Clicking the toggle button will make all the individual contextual links buttons on the page visible; clicking the toggle button again will make them invisible.{% endtrans %}</li>
+</ul>
+<p>{% trans %}While the contextual links button for the area of interest is visible, click the button to display the list of links for that area. Click a link in the list to perform the task.{% endtrans %}</p>

core/modules/help_topics/help_topics/tour.overview.html.twig → core/modules/help_topics/help_topics/core.ui_tours.html.twig

 ---
-label: 'Taking tours of administrative pages'
+label: 'Tours'
 related:
   - core.ui_components
 ---
-<h2>{% trans %}Goal{% endtrans %}</h2>
-<p>{% trans %}Take a tour of an administrative page.{% endtrans %}</p>
 <h2>{% trans %}What are tours?{% endtrans %}</h2>
 <p>{% trans %}The core Tour module provides users with <em>tours</em>, which are guided tours of the administrative interface. Each tour starts on a particular administrative page, and consists of one or more <em>tips</em> that highlight elements of the page, guide you through a workflow, or explain key concepts. Users need <em>Access tour</em> permission to view tours, and JavaScript must be enabled in their browsers.{% endtrans %}</p>
-<h2>{% trans %}Steps{% endtrans %}</h2>
-<ol>
-  <li>{% trans %}Make sure that the core Tour module is installed, and that you have a role with the <em>Access tour</em> permission. Also, make sure that a toolbar module is installed (either the core Toolbar module or a contributed module replacement).{% endtrans %}</li>
-  <li>{% trans %}Visit an administrative page that has a tour, such as the edit view page provided by the core Views UI module.{% endtrans %}</li>
-  <li>{% trans %}Click the <em>Tour</em> button at the right end of the toolbar (left end for right-to-left languages). The first tip of the tour should appear.{% endtrans %}</li>
-  <li>{% trans %}Click the <em>Next</em> button to advance to the next tip, and <em>End tour</em> at the end to close the tour.{% endtrans %}</li>
-</ol>
+<h2>{% trans %}Viewing tours{% endtrans %}</h2>
+<p>{% trans %}If a tour is available on a page, and you have the core Toolbar module installed, a <em>Tour</em> button will appear on the right end of the toolbar (left end for right-to-left languages). Click this button to view the first tip of the tour; click the <em>Next</em> button to advance to the next tip, and <em>End tour</em> at the end to close the tour.{% endtrans %}</p>

core/modules/help_topics/help_topics/help.help_topic_search.html.twig

@@ -2,21 +2,19 @@
 label: 'Configuring help search'
 top_level: true
 ---
-{% set extend_url = render_var(url('system.modules_list')) %}
-{% set help_url = render_var(url('help.main')) %}
 <h2>{% trans %}Goal{% endtrans %}</h2>
 <p>{% trans %}Set up your site so that users can search for help.{% endtrans %}</p>
 <h2>{% trans %}Steps{% endtrans %}</h2>
 <ol>
-  <li>{% trans %}In the <em>Manage</em> administrative menu, navigate to <em><a href="{{ extend_url }}">Extend</a></em>. Verify that the Search, Help, Help Topics, and Block modules are installed (or install them if they are not already installed).{% endtrans %}</li>
-  <li>{% trans %}In the <em>Manage</em> administrative menu, navigate to <em>Configuration</em> &gt; <em>Search and metadata</em> &gt; <em>Search pages</em>.{% endtrans %}</li>
+  <li>{% trans %}From the <em>Extend</em> administrative page (<em>admin/modules</em>), verify that the Search, Help, Help Topics, and Block modules are installed (or install them if they are not already installed).{% endtrans %}</li>
+  <li>{% trans %}In the <em>Manage</em> administrative menu, navigate to <em>Configuration</em> &gt; <em>Search and metadata</em> &gt; <em>Search pages</em> (<em>admin/config/search/pages</em>).{% endtrans %}</li>
   <li>{% trans %}Verify that a Help search page is listed in the <em>Search pages</em> section. If not, add a new page of type <em>Help</em>.{% endtrans %}</li>
   <li>{% trans %}Check the indexing status of the Help search page. If it is not fully indexed, run Cron until indexing is complete.{% endtrans %}</li>
   <li>{% trans %}In the future, you can click <em>Rebuild search index</em> on this page, or clear the site cache, in order to force help topic text to be reindexed for searching. This should be done whenever a module, theme, language, or string translation is updated.{% endtrans %}</li>
-  <li>{% trans %}In the  <em>Manage</em> administrative menu, navigate to <em>Structure</em> &gt; <em>Block layout</em>.{% endtrans %}</li>
+  <li>{% trans %}In the  <em>Manage</em> administrative menu, navigate to <em>Structure</em> &gt; <em>Block layout</em> (<em>admin/structure/block</em>).{% endtrans %}</li>
   <li>{% trans %}Click the link for your administrative theme (such as the core Seven theme), near the top of the page.{% endtrans %}</li>
   <li>{% trans %}See if there is already a help search block placed in the Help region of your administrative theme.{% endtrans %}</li>
   <li>{% trans %}If there is not already a help search block placed, click <em>Place block</em>, and then click <em>Place block</em> in the row next to <em>Search form</em> in the dialog. Choose <em>Help</em> as the search page for the block, and in the <em>Visibility</em> &gt; <em>Pages</em> field, enter <em>/admin/help</em> to make the search form only visible on the main <em>Help</em> page.{% endtrans %}</li>
   <li>{% trans %}Fill in the rest of the form and save the block.{% endtrans %}</li>
-  <li>{% trans %}In the  <em>Manage</em> administrative menu, navigate to <em><a href="{{ help_url }}">Help</a></em>. Verify that the search block is visible, and try a search.{% endtrans %}</li>
+  <li>{% trans %}Visit the main <em>Help</em> page (<em>admin/help</em>) to verify that the search block is visible, and try a search.{% endtrans %}</li>
 </ol>

core/modules/help_topics/help_topics/help.help_topic_writing.html.twig

+---
+label: 'Writing good help'
+top_level: true
+---
+<p>{% trans %}Here are some suggestions for how to make your help topics as useful as possible for readers:{% endtrans %}</p>
+<ul>
+  <li>{% trans %}Choose short titles. If the topic describes a task, start with a verb in -ing form, like "Writing good help".{% endtrans %}</li>
+  <li>{% trans %}Make your topics modular and short, using links to connect information together.{% endtrans %}</li>
+  <li>{% trans %}Use headings and lists to organize your topics.{% endtrans %}</li>
+  <li>{% trans %}Write in second person (you, your). When describing a task, use imperative mood (tell people directly what to do, such as "Enter information in the ABC field", rather than using words like "please" or more passive or declarative language like "the ABC field needs to be filled in").{% endtrans %}</li>
+</ul>

core/modules/help_topics/help_topics/shortcut.overview.html.twig

----
-label: 'Creating and using shortcut administrative links'
-related:
-  - core.ui_components
----
-<h2>{% trans %}Goal{% endtrans %}</h2>
-<p>{% trans %}Create, view, and use a set of shortcuts to access administrative pages.{% endtrans %}</p>
-<h2>{% trans %}What are shortcuts?{% endtrans %}</h2>
-<p>{% trans %}<em>Shortcuts</em> are quick links to administrative pages; they are managed by the core Shortcut module. A site can have one or more <em>shortcut sets</em>, which can be shared by one or more users (by default, there is only one set shared by all users); each set contains a limited number of shortcuts. Users need <em>Use shortcuts</em> permission to view shortcuts; <em>Edit current shortcut set</em> permission to add, delete, or edit the shortcuts in the set assigned to them; and <em>Select any shortcut set</em> permission to select a different shortcut set when editing their user profile. There is also an <em>Administer shortcuts</em> permission, which allows an administrator to do any of these actions, as well as select shortcut sets for other users.{% endtrans %}</p>
-<h2>{% trans %}Steps{% endtrans %}</h2>
-<ol>
-  <li>{% trans %}Make sure that the core Shortcut module is enabled, and that you have a role with <em>Edit current shortcut set</em> or <em>Administer shortcuts</em> permission. Also, make sure that a toolbar module is installed (either the core Toolbar module or a contributed module replacement).{% endtrans %}</li>
-  <li>{% trans %}Navigate to an administrative page that you want in your shortcut list.{% endtrans %}</li>
-  <li>{% trans %}Click the shortcut link to add the page to your shortcut list -- in the core Seven administrative theme, the link looks like a star, and is displayed next to the page title. However, if the page is already in your shortcut set, clicking the shortcut link will remove it from your shortcut set.{% endtrans %}</li>
-  <li>{% trans %}Repeat until all the desired links have been added to your shortcut set.{% endtrans %}</li>
-  <li>{% trans %}Click <em>Shortcuts</em> in the toolbar to display your shortcuts, and verify that the list is complete.{% endtrans %}</li>
-  <li>{% trans %}Optionally, click <em>Edit shortcuts</em> at the right end of the shortcut list (left end in right-to-left languages), to remove links or change their order.{% endtrans %}</li>
-  <li>{% trans %}Click any link in the shortcut bar to go directly to the administrative page.{% endtrans %}</li>
-</ol>

core/modules/help_topics/help_topics/shortcut.ui_shortcuts.html.twig

+---
+label: 'Shortcuts'
+related:
+  - core.ui_components
+---
+<h2>{% trans %}What are shortcuts?{% endtrans %}</h2>
+<p>{% trans %}<em>Shortcuts</em> are quick links to administrative pages; they are managed by the core Shortcut module. A site can have one or more <em>shortcut sets</em>, which can be shared by one or more users; each set contains one or more shortcuts. Users need <em>Use shortcuts</em> permission to view shortcuts; <em>Edit current shortcut set</em> permission to add, delete, or edit the shortcuts in the set assigned to them; and <em>Select any shortcut set</em> permission to select a different shortcut set when editing their user profile. There is also an <em>Administer shortcuts</em> permission, which allows an administrator to do any of these actions, and also permits assigning shortcut sets to other users.{% endtrans %}</p>
+<h2>{% trans %}Creating and deleting shortcuts{% endtrans %}</h2>
+<p>{% trans %}When viewing certain administrative pages, you will see a link that allows you to add the page to your current shortcut set. In the core Seven administrative theme, the link looks like a star, and is displayed next to the page title. If the page is already in your shortcut set, you will instead see a link that allows you to remove it.{% endtrans %}</p>
+<h2>{% trans %}Viewing and using shortcuts{% endtrans %}</h2>
+<p>{% trans %}If you have the core Toolbar module installed, click <em>Shortcuts</em> in the toolbar to display your shortcuts. Once they are displayed, click any link in the shortcut bar to go directly to the administrative page. If you are not using the Toolbar module, you can display shortcuts by placing the <em>Shortcuts</em> block in a region of your theme.{% endtrans %}</p>

core/modules/help_topics/help_topics/system.config_basic.html.twig

----
-label: 'Changing basic site settings'
-top_level: true
-related:
-  - user.security_account_settings
----
-{% set regional_url = render_var(url('system.regional_settings')) %}
-{% set information_url = render_var(url('system.site_information_settings')) %}
-{% set datetime_url = render_var(url('entity.date_format.collection')) %}
-<h2>{% trans %}Goal{% endtrans %}</h2>
-<p>{% trans %}Configure the basic settings of your site, including the site name, slogan, main email address, default time zone, default country, and the date formats to use.{% endtrans %}</p>
-<h2>{% trans %}Steps{% endtrans %}</h2>
-<ol>
-  <li>{% trans %}In the <em>Manage</em> administrative menu, navigate to <em>Configuration</em> &gt; <em>System</em> &gt; <em><a href="{{ information_url }}">Basic site settings</a></em>.{% endtrans %}</li>
-  <li>{% trans %}Enter the site name, slogan, and main email address for your site. {% endtrans %}</li>
-  <li>{% trans %}Click <em>Save configuration</em>. You should see a message indicating that the settings were saved.{% endtrans %}</li>
-  <li>{% trans %}In the <em>Manage</em> administrative menu, navigate to <em>Configuration</em> &gt; <em>Regional and language</em> &gt; <em><a href="{{ regional_url }}">Regional settings</a></em>.{% endtrans %}</li>
-  <li>{% trans %}Select the default country and default time zone for your site.{% endtrans %}</li>
-  <li>{% trans %}Click <em>Save configuration</em>. You should see a message indicating that the settings were saved.{% endtrans %}</li>
-  <li>{% trans %}In the <em>Manage</em> administrative menu, navigate to <em>Configuration</em> &gt; <em>Regional and language</em> &gt; <em><a href="{{ datetime_url }}">Date and time formats</a></em>.{% endtrans %}</li>
-  <li>{% trans %}Look at the <em>Patterns</em> for the Default long, medium, and short date formats. If any of them does not match the date format you want to use on your site, click <em>Edit</em> in that row to edit the format.{% endtrans %}</li>
-  <li>{% trans %}Adjust the <em>Format string</em> until the <em>Displayed</em> format matches what you want. (Date format strings are composed of PHP date format codes.){% endtrans %}</li>
-  <li>{% trans %}Click <em>Save format</em>. You should see a message indicating that the format was saved.{% endtrans %}</li>
-  <li>{% trans %}Repeat the previous three steps for any other date formats that need to be changed.{% endtrans %}</li>
-</ol>
-<h2>{% trans %}Additional resources{% endtrans %}</h2>
-<p>{% trans %}<a href="https://php.net/manual/function.date.php">PHP date format codes reference</a>{% endtrans %}</p>

core/modules/help_topics/help_topics/system.config_error.html.twig

----
-label: 'Configuring error responses, including 403/404 pages'
-related:
-  - system.config_basic
----
-{% set log_settings_url = render_var(url('system.logging_settings')) %}
-{% set information_url = render_var(url('system.site_information_settings')) %}
-<h2>{% trans %}Goal{% endtrans %}</h2>
-<p>{% trans %}Set up your site to respond appropriately to site errors, including 403 and 404 page responses.{% endtrans %}</p>
-<h2>{% trans %}What are 403 and 404 responses?{% endtrans %}</h2>
-<p>{% trans %}When a user visits a web page, the web server sends a response code in addition to the page content. A normal, non-error response has code 200. If the page does not exist on the site, the response code is 404. If the page exists, but the user is not authorized to visit the page, the response code is 403. The core software provides default responses for both 403 and 404 codes, but if you prefer, you can create your own pages for each.{% endtrans %}</p>
-<h2>{% trans %}What other errors can occur?{% endtrans %}</h2>
-<p>{% trans %}Under some situations, your site can generate error messages. These can be due to user errors (such as entering invalid values in a form, or incorrect configuration), PHP runtime errors, or software bugs. Some errors may result in a <em>white screen of death</em> (a totally blank web page response); less drastic errors will generate error messages. You can configure what happens when an error message is generated.{% endtrans %}</p>
-<h2>{% trans %}Steps {% endtrans %}</h2>
-<ol>
-  <li>{% trans %}If desired, create pages to use for 403 and 404 responses. Note the URLs for these pages.{% endtrans %}</li>
-  <li>{% trans %}In the <em>Manage</em> administrative menu, navigate to <em>Configuration</em> &gt; <em>System</em> &gt; <em><a href="{{ information_url }}">Basic site settings</a></em>.{% endtrans %}</li>
-  <li>{% trans %}In the <em>Error pages</em> section, enter the URL for your 403/403 pages, starting after the site home page URL. For example, if your site URL is <em>https://example.com</em> and your 404 page is <em>https://example.com/not-found</em>, you would enter <em>/not-found</em>.{% endtrans %}</li>
-  <li>{% trans %}Click <em>Save configuration</em>. You should see a message indicating that the settings were saved.{% endtrans %}</li>
-  <li>{% trans %}In the <em>Manage</em> administrative menu, navigate to <em>Configuration</em> &gt; <em>Development</em> &gt; <em><a href="{{ log_settings_url }}">Logging and errors</a></em>.{% endtrans %}</li>
-  <li>{% trans %}For a production site, select <em>None</em> under <em>Error messages to display</em>. For a site that is in development, select one of the other options, so that you are more aware of the errors the site is generating.{% endtrans %}</li>
-  <li>{% trans %}Click <em>Save configuration</em>. You should see a message indicating that the settings were saved.{% endtrans %}</li>
-  <li>{% trans %}If you have the Database Logging module installed, in the <em>Manage</em> administrative menu, navigate to <em>Reports</em> &gt; <em>Recent log messages</em> to see a report of the error and informational messages your site has generated.{% endtrans %}</li>
-</ol>

core/modules/help_topics/help_topics/user.security_account_settings.html.twig

 ---
-label: 'Configuring how user accounts are created and deleted'
+label: 'Defining how user accounts are created'
 related:
   - core.security
 ---
 {% set account_settings_url = render_var(url('entity.user.admin_form')) %}
-<h2>{% trans %}Goal{% endtrans %}</h2>
-<p>{% trans %}Configure settings related to how user accounts are created and deleted.{% endtrans %}</p>
-<h2>{% trans %}What are the settings related to user account creation and deletion?{% endtrans %}</h2>
+<p>{% trans %}On the <a href="{{ account_settings_url }}"><em>Account settings</em></a> page, which you can reach from the <em>Manage</em> administrative menu, by navigating to <em>Configuration</em> &gt; <em>People</em> &gt; <em>Account settings</em> (requires the <em>Administer account settings</em> permission), you can configure several settings related to how user accounts are created:{% endtrans %}</p>
 <ul>
-  <li>{% trans %}You can make it possible for new users to register themselves for accounts, with or without email verification or administrative approval. Or, you can make it so only administrators with <em>Administer users</em> permission can register new users.{% endtrans %}</li>
-  <li>{% trans %}You can configure what happens to content that a user created, if their account is <em>canceled</em> (deleted).{% endtrans %}</li>
-  <li>{% trans %}You can edit the email messages that are sent to users when their accounts are pending, approved, created, blocked, or canceled, or when they request a password reset.{% endtrans %}</li>
+  <li>{% trans %}You can make it possible for new users to register themselves, with or without administrator approval. Or, you can make it so only administrators with <em>Administer users</em> permission can register new users.{% endtrans %}</li>
+  <li>{% trans %}You can require email verification of new user accounts.{% endtrans %}</li>
+  <li>{% trans %}You can enable or disable a password strength indicator, which is shown whenever passwords are being set up or changed.{% endtrans %}</li>
+  <li>{% trans %}You can edit the email messages that are sent to users in conjunction with the user registration process.{% endtrans %}</li>
 </ul>
-<h2>{% trans %}What are variables in email message text?{% endtrans %}</h2>
-<p>{% trans %}<em>Variables</em> are short text strings, enclosed in square brackets [], that you can insert into configured email message text. When an individual message is generated, data from your site is substituted for the variables. Some commonly-used variables are:{% endtrans %}</p>
-<ul>
-  <li>{% trans %}[site:name]: The name of your web site.{% endtrans %}</li>
-  <li>{% trans %}[site:url]: The URL of your web site.{% endtrans %}</li>
-  <li>{% trans %}[site:login-url]: The URL where users can log in to your site.{% endtrans %}</li>
-  <li>{% trans %}[user:display-name]: The user's displayed name.{% endtrans %}</li>
-  <li>{% trans %}[user:account-name]: The users's account name.{% endtrans %}</li>
-  <li>{% trans %}[user:mail]: The user's email alias.{% endtrans %}</li>
-  <li>{% trans %}[user:one-time-login-url]: An expiring URL that a user can use to log in once, if they need to reset their password.{% endtrans %}</li>
-</ul>
-<h2>{% trans %}Steps{% endtrans %}</h2>
-<ol>
-  <li>{% trans %}In the <em>Manage</em> administrative menu, navigate to <em>Configuration</em> &gt; <em>People</em> &gt; <em><a href="{{ account_settings_url}}">Account settings</a></em>.{% endtrans %}</li>
-  <li>{% trans %}Select the method you want to use for creating user accounts, and check or uncheck the box that requires email verification, to match the settings you want for your site.{% endtrans %}</li>
-  <li>{% trans %}Select the desired option for what happens to content that a user created if their account is canceled.{% endtrans %}</li>
-  <li>{% trans %}Optionally, edit the text of email messages related to user accounts.{% endtrans %}</li>
-  <li>{% trans %}Verify that the other settings are correct.{% endtrans %}</li>
-  <li>{% trans %}Click <em>Save configuration</em>. You should see a message indicating that the settings were saved.{% endtrans %}</li>
-</ol>

core/modules/help_topics/tests/src/Functional/HelpTopicTest.php

@@ -132,6 +132,18 @@ public function testHelp() {
     $this->container->get('theme_installer')->uninstall(['help_topics_test_theme']);
     $this->drupalGet('admin/help');
     $session->linkNotExists('XYZ Help Test theme');
+
+    // Verify the Help Topics provided by the Help Topics module for optional
+    // extensions do not exist.
+    $this->drupalGet('admin/help/topic/core.ui_components');
+    $session->linkNotExists('Shortcuts');
+    $session->linkExists('Accessibility features');
+    $this->container->get('module_installer')->install(['shortcut']);
+    $this->drupalGet('admin/help/topic/core.ui_components');
+    $session->linkExists('Shortcuts');
+    $session->linkExists('Accessibility features');
+    $this->clickLink('Shortcuts');
+    $session->pageTextContains('What are shortcuts?');
   }
 
   /**