Repo for the git-immersion exceceise

Based on: http://gitimmersion.com/

Instructions:

1. Fork and clone this repository.
2. Follow the steps from the included html/index.html folder or the online version.
3. Pay attention to the red Note messages at the top of different steps for specialized instructions.
4. The .rb files in the tutorials are Ruby code files, the exact content and logic is usually not the main focus here.
5. Finally (step 53) push all your commits, branches and tags and submit by creating a pull request