- Added small note about PHP5 support.

INSTALL.txt

@@ -3,9 +3,9 @@
 REQUIREMENTS
 ------------
 
-Drupal requires a web server, PHP4 (http://www.php.net/) and either
-MySQL or PostgreSQL. Drupal requires PHP 4.1.0 or greater on Linux
-and PHP 4.2.3 or greater on Windows. PHP5 is not yet supported.
+Drupal requires a web server, PHP4 or PHP5 (http://www.php.net/) and
+either MySQL or PostgreSQL. Drupal requires PHP 4.1.0 or greater on
+Linux and PHP 4.2.3 or greater on Windows. PHP5 is not yet supported.
 
 NOTE: The Apache web server and MySQL database are strongly recommended;
 other web server and database combinations such as IIS and PostgreSQL