Helpful Links-
Just a helpful tutorial: https://www.datacamp.com/tutorial/git-push-pull
Helpful link for beginners: https://www.datacamp.com/tutorial/github-and-git-tutorial-for-beginners
Reverting a commit in GitHub Desktop: https://docs.github.com/en/desktop/managing-commits/reverting-a-commit-in-github-desktop
Getting started with GitHub Desktop: https://docs.github.com/en/desktop/overview/getting-started-with-github-desktop