Fixed #12799 -- Added an extra newline to help with PDF generation of...

Fixed #12799 -- Added an extra newline to help with PDF generation of documentation. Thanks to Ivan Savov for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12518 bcc190cf-cafb-0310-a4f2-bffc1f526a37