We've made some changes to the v3 spec this week, most notably we've defined what the file structure looks like for Practice Exercises. See the spec for more information.
This PR applies changes to the track to conform to the latest spec. Each change is made as a separate commit, to help with reviewing. When merging this PR, I would suggest to not squash this to preserve the individual commits.
As having this PR merged is essential to prepare this track for Exercism v3, we'll automatically merge this PR one week after it was opened (if it hasn't been merged already).
Here are the changes made: