How can i make a android games with github?

Hello Sir/Mam , I am need in Github. I don’t understand so much about that. I am trying to know about github. My friend suggest me girhub for programming. I want to know that how can i create a android games like this website games its name Free Fire. Can i make a games like that with github ? is it possible ? If its possible then how can i start . I just trying to learning new things. Thank you