I meet quite a few people who want to contribute to an open source project, but struggle with using:

• Git, a widely used version control system.
• GitHub.com, the most commonly used host for Git repositories.

Therefore, I have written a short tutorial for learning 10 basic commands that I think are sufficient for collaborating with others through an open source Git repository:

• 10 Git Commands for Collaborating: Learn Just Enough Git and GitHub to Contribute to an Open Source Project.