Fix issue # 43: Add note about django.contrib.markup to installation  instructions.
Fix issue # 43: Add note about django.contrib.markup to installation 
instructions.


git-svn-id: 135a05d4c41af105ef1c0134ae9ab473155b4026@28 8fd21cde-4a2f-0410-9917-19c3686e4e0c

incuna/django-forum-pinax,marcinn/django-forum,farstarinc/django-forum,alcides/django-forum,dafrito/django-forum