Launch tracking

Overall documentation for building an Exercism track lives at https://exercism.org/docs/building/tracks/new

This issue helps keep track of the tasks you're working on towards launching this track.

The next steps are:

- [x] [Join our community](https://exercism.org/docs/building/tracks/new/join-our-community)
- [x] [Select programming language variant](https://exercism.org/docs/building/tracks/new/select-programming-language-variant) (if applicable)
- [x] [Select testing framework](https://exercism.org/docs/building/tracks/new/select-testing-framework)
- [x] https://github.com/exercism/chapel/issues/3
- [x] #19
- [x] [Fill track docs](https://exercism.org/docs/building/tracks/docs) #10
- [x] [Fill shared files](https://exercism.org/docs/building/tracks/shared-files) #10
- [x] #5
- [x] #53
- [x] [Find Maintainers](https://exercism.org/docs/building/tracks/new/find-maintainers)
- [ ] [Launch!](https://exercism.org/docs/building/tracks/new/launch)
- [x] #38
- [x] [Prepare for open source contributions from strangers](https://exercism.org/docs/building/tracks/new/prepare-for-contributions)

Once you've finished a task, you can check them in this list.

## Questions

Please ask if you have any questions or if anything is confusing!