Fixed #8546 -- Fixed error in request-response.txt where we were incorrectly...

Fixed #8546 -- Fixed error in request-response.txt where we were incorrectly listing HttpResponse.content() in the 'Methods' section instead of the 'Attributes' section. Thanks, schmichael

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9054 bcc190cf-cafb-0310-a4f2-bffc1f526a37