Unison Exercism exercise stubs

For folks doing Unison for Mind-shifting May (and other months too) we’ve published the exercise stubs for our track here. Unison is a bit different in that your code isn’t stored in files on the file-system, so it can be a challenge to get the workflow right if you want to work locally in your own Unison setup. These stubs can help with exploring solutions and getting tests to pass locally, but you’ll still need to submit actual files via the Exercism CLI or copy and paste your solutions into the web-based portal. Let me know if anyone runs into trouble!