You can find documentation at [chartjs.org/docs](http://www.chartjs.org/docs/). The markdown files that build the site are available under `/docs`. Please note - in some of the json examples of configuration you might notice some liquid tags - this is just for the generating the site html, please disregard.
When reporting bugs or issues, if you could include a link to a simple [jsbin](http://jsbin.com) or similar demonstrating the issue, that'd be really helpful.