One thing I loce these 5 days learning how to code is that I underestimated a lot Git as a tool, now I know how much is importante to use it and not only that, I understand the workflow behind an open source project. If you want to take the course, it's paid but worth it at platzi.

And yes, there are lots of courses but I like this one, especially if you speak spanish, it's a well-structured course.