Added note about multiple block tags to docs/templates.txt
Added note about multiple block tags to docs/templates.txt

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@905 bcc190cf-cafb-0310-a4f2-bffc1f526a37

FlaPer87/django-nonrel,aparo/django-nonrel,FlaPer87/django-nonrel,FlaPer87/django-nonrel,aparo/django-nonrel,aparo/django-nonrel