• https://git-scm.com/docs
• https://zielonybuszmen.github.io/2017/10/22/git/
• https://dev.to/doabledanny/git-cheat-sheet-50-commands-free-pdf-and-poster-4gcn
• https://about.gitlab.com/images/press/git-cheat-sheet.pdf
• https://education.github.com/git-cheat-sheet-education.pdf
• https://about.gitlab.com/handbook/engineering/development/dev/create-editor/developer-cheatsheet/
• https://www.git-tower.com/blog/git-cheat-sheet/