add contributing md

[kweav]

Purpose/implementation Section

What changes are being implemented in this Pull Request?

Adding a CONTRIBUTING.md file and adding it to the list of template specific files that needs to be cleaned up for course setup

What was your approach?

Added the markdown file and included it in the list of files that needed to be cleaned up in starting-course.yml

What GitHub issue does your pull request address?

Issue #706

Tell potential reviewers what kind of feedback you are soliciting.

Does this cover what you were hoping for? What information isn't there but should be? What information is there but shouldn't be? What information needs to be clearer?

[github-actions[bot]]

No broken urls! :tada: Comment updated at 2024-03-14 with changes from c12d58a37d8b007b640317aebc62ea0a506d1bca

[github-actions[bot]]

Re-rendered previews from the latest commit:

• :eyes: Quick preview of course website here *
• :microscope: Comprehensive download of the course website here
• Download the .docx file

* note not all html features will be properly displayed in the "quick preview" but it will give you a rough idea.

Updated at 2024-03-14 with changes from the latest commit c12d58a37d8b007b640317aebc62ea0a506d1bca

[github-actions[bot]]

No spelling! :tada: Comment updated at 2024-03-14 with changes from c12d58a37d8b007b640317aebc62ea0a506d1bca