Resources to get started

Tools :

Git - Download here
Github Desktop - Download here
Git Handbook - Download here
Git Cheatsheet - Download here

Best - Practices :

Commits - Check it out here
Markdown Guide - Check it out here
Readme Generator - Check it out here

Curated Resources :

How to Contribute - Check out this resource created by FreeCodeCamp
Contribution Guide - Check out this resource created by Fnplus Club

Open Source Programs :

Google Summer of Code - Partcipate here
Google Season of Docs - Participate here
Tezos Fellowship - Participate here
MLH Fellowship - Participate here
Hacktoberfest - Participate here
GirlScript Summer of Code - Participate here
GNOME Community Engagement Challenge - Participate here
Rails Girls Summer of Code - Participate here
And More .. - Participate here