Git and GitHub are powerful tools for collaboration, but both have a steep learning curve. I am an certified instructor with the Carpentries and I have taught the Git lesson several times. I'll give you a gentle introduction to version control and how you use Git for your own projects, but more importantly how to use it to collaborate.
No previous experience required - I will get you up to speed. I'm also happy to answer your Git questions or if you are a Git expert please come along and help teaching others.
If you have a Mac or a Linux laptop - git is already installed. If you have a Windows laptop, you can download Git for windows https://gitforwindows.org