[Django Girls: Regular Expressions] (http://tutorial.djangogirls.org/en/django_urls/index.html#regex) (30 second guide)
[Dive Into Python: Regular Expressions] (http://www.diveintopython.net/regular_expressions/) (10 minute guide)
[Django Template Language Reference Guide] (https://docs.djangoproject.com/en/1.8/ref/templates/language/)
[Upgrading templates to Django 1.8] (https://docs.djangoproject.com/en/1.8/ref/templates/upgrading/)
[Hitchhickers Guide to Python: Code Style] (http://docs.python-guide.org/en/latest/writing/style/)
[Simple Horizonal Navigation with CSS] (http://css-snippets.com/simple-horizontal-navigation/)