Some Useful links about git

Links Open in New Windows

You can create (free) accounts on either
github
or
gitlab
Both are git servers that use the standard git command langauge although they may vary in terms of authentication setttings etc. You could even setup your own server at home.

Git Documents

git folha de dicas.pdf
git cheat sheet education.pdf
Git Commands Overview.md

Learn Git Online

https://learngitbranching.js.org/