Fixed #10559 -- Clarified documentation on customization of comments pages....

Fixed #10559 -- Clarified documentation on customization of comments pages. Thanks to Thejaswi Puthraya for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10566 bcc190cf-cafb-0310-a4f2-bffc1f526a37