These are the rumours about Github that it will be acquired by Microsoft, it has happened a lot of times in the past. Given the Close partnership between Microsoft and Github, Github has recently announced some new features that Microsoft has built, it wouldn’t be shocking if that happens.
If you are interested in learning GitHub then you can learn it by taking up the GitHub training course. If you are more into reading, then you can have a look at the GitHub tutorial. If you want to learn it by watching the video tutorial then you can have a look at the following tutorial:-