Some of these might be a bit obvious but here we go:
- Project goals (what it is? what it's not?)
- Concrete use cases (how to use it in practice and for what sort of stuff?)
- How to set it up? How to hook it up with your build system and current workflow?
- Why to use it? Are there alternatives? Why not to just use CoffeeScript or Traceur instead?
Hopefully those will help you to get started. :)
If you end up doing presentations, I really wouldn't mind if you could put the slides somewhere.