Add integration tests, documentation, github page

[ksin]

Heya @MelSumner. Lovely addon. Just thought I'd leave an issue here to remind myself to add some stuff this weekend when I circle back. Let me know if I'm overlapping with anything you were going to do.

• integration tests
• update documentation
• github page with dummy app and code snippets

[ksin]

#3 for integration tests

[MelSumner]

This is really great, @ksin - delighted that you are interested in being a part of this!