Github is an open-source and a version control system. it has free as well as paid plain for everyone. it provides a very interesting and useful service that is storing the code in the repository. we can also share the code with others and also improve the other code using push and pull requests.
apart from that GitHub also provides a scholarship for students and one best thing is Github student developer pack that is for every student. it provides 70+ benefits like free courses, free software access, etc.
Using github we can also collaborate with our team and work on a project. I personally use github for my projects and also got selected for github student developer pack.
we can also get the opportunity to work with github team.