Download: https://git-scm.com/downloads
Github Tutorial: https://lab.github.com/
Git Cheatsheet: https://ndpsoftware.com/git-cheatsheet.html#loc=local_repo;
Github Emoji Sheet: https://gist.github.com/rxaviers/7360908
Markdown Tutorial: https://www.markdowntutorial.com/
Github Student Pack: https://education.github.com/pack (must check 💙)
These are some of the programs in which you are rewarded for your contribution to the open source.