Adding third-party sign-on to a Django site

1. Run docker-compose up --build
2. Go to the [Meetup Register OAuth Consumer page][oauth_create], enter anything for the consumer name, and http://localhost:8000/oauth/login for the ‘Redirect URI.’
3. Add MEETUP_CLIENT_ID and MEETUP_CLIENT_SECRET to .django_secrets.json
4. Visit http://localhost:8000/polls/