GitHub Check Box is an Issue with Markdown in this form. If if others have
write access to that issue they even can "check" by clicking on it.
To Do List:
* [x] Feature A
* [ ] Feature B
* [x] Feature C
* [ ] Feature D
See this [Gist...](https://gist.github.com/oderwat/19c2899072f2894512c56e3521efdb4b)
