Want to learn more about GitHub and that too for free ?. Here’s an useful resource from Syncfusion that lets you get to know more about GitHub.
The book "GitHub Succinctly" is written by Joseph D. Booth and you will learn every everything from the basics of Git to more advanced actions like pull requests. In no time you’ll be exploring new projects, posting your own, and providing your company with a safe place to work!
You can download the book from Syncfusion’s website.