Issue #3050448 by kkalaskar, joachim, idebr: @see link in TwigNodeTrans docs is a 404

core/lib/Drupal/Core/Template/TwigNodeTrans.php

@@ -11,7 +11,7 @@
  * severely modified to work properly with the complexities of the Drupal
  * translation system.
  *
- * @see http://twig.sensiolabs.org/doc/extensions/i18n.html
+ * @see https://twig-extensions.readthedocs.io/en/latest/i18n.html
  * @see https://github.com/fabpot/Twig-extensions
  */
 class TwigNodeTrans extends \Twig_Node {

core/lib/Drupal/Core/Template/TwigTransTokenParser.php

@@ -10,7 +10,7 @@
  * into PHP code usable for runtime execution of the template.
  *
  * @see \Twig_TokenParser
- * @see http://twig.sensiolabs.org/doc/extensions/i18n.html
+ * @see https://twig-extensions.readthedocs.io/en/latest/i18n.html
  * @see https://github.com/fabpot/Twig-extensions
  */
 class TwigTransTokenParser extends \Twig_TokenParser {