Fixed a typo in comments upgrade guide.
Fixed a typo in comments upgrade guide.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8667 bcc190cf-cafb-0310-a4f2-bffc1f526a37

--HG--
extra : convert_revision : 3a9c3767833c6a63bfecdb4abe2b197e7857e0b2

heracek/django-nonrel,heracek/django-nonrel,adieu/django-nonrel,adieu/django-nonrel,heracek/django-nonrel,adieu/django-nonrel