102 documentation explain forked repos

[LittleBigProgramming]

Description of Feature or Issue

closes #102 🚀

Explain that we used forked repos in the CONTRIBUTING guide and how to pull from the upstream repo. Include how to fork/clone the repo, preferably link to a GitHub resource.

• Added collapsible section (since the details are quite long in comparison to the rest of the document) to the contributing.md to explain forking repositories. This is split up into sections of: Forking the repository and keeping up to date (syncing)

Checklist

[ ] Added/changed specs for the changes made [ ] Is the linting build successful? [ ] Is the test build successful? Not applicable since this is a documentation change.

User-Facing Changes

Please check the CONTRIBUTING.md

[LittleBigProgramming]

I love this. I really like the use of summary/detail, and you've done a great job looking up resources on GitHub for these docs. 👍

Think this is ready for re-review now 🎉 Thanks for the feedback 🙏

Yeah, I hope it will be useful, I know some engineers that have never contributed to open source so they have forked a repo for example. 😃