See in parent repo: https://github.com/oc7o/OctopusInterface

Generate Class Overview

1. pip install django-extensions
2. Add django_extensions to INSTALLED_APPS in settings.py
3. (Mac OS): brew install graphviz
4. python manage.py graph_models -a --dot -o myapp_models.dot
5. dot -Tpng myapp_models.dot -omyapp_models.png