runtime(doc): clarify instal instructions for comment package

Signed-off-by: Christian Brabandt <[email protected]>

runtime/doc/usr_05.txt

@@ -1,4 +1,4 @@
-*usr_05.txt*	For Vim version 9.1.  Last change: 2024 Apr 26
+*usr_05.txt*	For Vim version 9.1.  Last change: 2024 May 17
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
@@ -445,7 +445,8 @@ Load the plugin with this command: >
 This way you can use the plugin with the default key bindings `gc` and similar
 for commenting (which is a well-established mapping in the Vim community).
 
-After restarting your Vim, the plugin is active and you can read about it at: >
+If you add this line to your vimrc file, then you need to restart Vim to have
+the package loaded. Once the package is loaded, read about it at: >
 	:h comment.txt
 
 More information about packages can be found here: |packages|.