-. Fork the project repository to your github account.
-. Clone the repository to your computer.
-. Open the README.md files to read the manual and instruction.
-. Make sure all of your code is committed.
-. Push/sync up to GitHub.
-. Create a pull request on the original repository.
-. You can continue to push fixes and improvements – just add a comment in the pull request to others know that it's been updated.
-. Or, you can see this tutorial