- Atlassian git tutorial by atlassian (https://www.atlassian.com/git/tutorials)
- Git Magic by standford.edu (http://www-cs-students.stanford.edu/~blynn/gitmagic/)
- Git Handbook by github (https://guides.github.com/introduction/git-handbook/)
- First timers only by firsttimersonly.com (https://www.firsttimersonly.com/)