First, check out the Pro Git Book written by Scott Chacon and Ben Straub. The entire book is online and a great reference for both new git users trying to learn the ropes and command line wizards trying to automate their coffee pots based on the number of frustrated git commits per hour.
If you are completely new to git, skim the first three chapters of Pro Git and check out the git tutorial. The tutorial is fast paced to refer back to the Pro Git book as necessary.
Useful links:
- How to Write a Git Commit Message by Chris Beams.
- Markdown Cheatsheet
- Visual Studio Code(has pretty good git integration)
- Git install links (includes git bash)
Finally, don't be shy! Myself and others might have a simple fix for any conflicts you create while working on this hackathon. Use the slack help channel, feel free to Direct message myself and others using the @User functionality in slack!