Resources :
https://git.github.io/git-reference/
https://git-scm.com/book/en/v2/Getting-Started-First-Time-Git-Setup
https://git-scm.com/book/en/v2/Git-Basics-Getting-a-Git-Repository
https://git-scm.com/book/en/v2/Git-on-the-Server-Getting-Git-on-a-Server
https://git-scm.com/book/en/v2/Git-on-the-Server-Setting-Up-the-Server
https://help.github.com/en/github/using-git/ignoring-files
http://rogerdudler.github.io/git-guide/
Workflows :
https://www.atlassian.com/git/tutorials/comparing-workflows
SSH Keys :
https://help.github.com/en/articles/checking-for-existing-ssh-keys
https://help.github.com/en/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent
HUB :
https://github.com/github/hub
https://hub.github.com/hub.1.html
https://hub.github.com/hub-api.1.html
https://github.com/github/hub/blob/master/etc/hub.bash_completion.sh