Documentation site

[bgentry]

I'd love for this addon to have a proper documentation site. We could do a lot using public GraphQL APIs like GitHub's and with the foundation of https://github.com/ember-learn/ember-cli-addon-docs.

[bgentry]

Unfortunately ember-cli-addon-docs adoption is currently blocked on ember-learn/ember-cli-addon-docs#200 . I could downgrade this addon back to Ember CLI v3.1, but it's probably just worth it to wait for them to fix that issue.

My attempted progress is here: https://github.com/bgentry/ember-apollo-client/tree/addon-docs