I'm not new to using GitHub on Android Studio, but:
This is my first try to contribute to a sample project for Android on GitHub.
I did the following
First of all, to do a contribution:
Through the command line, navigate to your clone directory then add upstream version (original repository):
$ git remote add upstream https://github.com/fcannizzaro/material-stepper.git
You can check it using the line
$ git remote, and you will see
Make changes → commit them → then push (all of this happen on your repository (forked one), not the upstream).
Go and check the network graph for both the forked and original repositories.
Go to the GitHub original repository's link and click
Thanks for Erik Carlsten's tutorials.