A tutorial for using 21 with Django and Heroku

See the tutorial at https://21.co/learn/django-heroku/

Quick deploy

If you clone this repository directly (and don't use one of the tagged releases) note that ALLOWED_HOSTS is set to a wildcard to enable the quick-deploy button above. For security purposes you should change this to your specific domain, and note that it's only enforced when DEBUG mode is off.