[1.2.X] Fixed #14727 -- Corrected three minor issues in the docs. Thanks to...

[1.2.X] Fixed #14727 -- Corrected three minor issues in the docs. Thanks to OldTroll for the report and the patch.

Backport of [14644] from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@14645 bcc190cf-cafb-0310-a4f2-bffc1f526a37