In order to contribute, I suggest you to write your own code and create a pull request directly to the "New" branch that is already exist.
I will be glad, if you contribute a bit to the repository
If you have no idea how to create a pull request read this https://yangsu.github.io/pull-request-tutorial/ and this https://help.github.com/articles/creating-a-pull-request/
Thanks!
Or if you still need some help, please contact me https://www.linkedin.com/in/mapinc/ thanks Do not hesitate to ask me!