Fixed #13013 -- Added missing {% csrf_token %} in example form.
Fixed #13013 -- Added missing {% csrf_token %} in example form.

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@12708 bcc190cf-cafb-0310-a4f2-bffc1f526a37

mitsuhiko/django,Smarsh/django,skevy/django,jamespacileo/django-france,Smarsh/django,alex/django-old,django-nonrel/django-nonrel,mitsuhiko/django,Smarsh/django,Smarsh/django,sam-tsai/django-old,alex/django-old,jamespacileo/django-france,bfirsh/django-old,sam-tsai/django-old,disqus/django-old,disqus/django-old,jamespacileo/django-france,Instagram/django,alex/django-old,sam-tsai/django-old,skevy/django,disqus/django-old,Instagram/django,bfirsh/django-old,sam-tsai/django-old,skevy/django,django-nonrel/django-nonrel,bfirsh/django-old,mitsuhiko/django,Instagram/django,django-nonrel/django-nonrel