###Fork the repo

Please pay attention don't directly push your dirty code into the main branch, Fork it first!

###Set remote upstream & origin

path-to-your-project-folder$ git init

`path-to-your-project-folder$ git remote add origin 'your own repo url'

`path-to-your-project-folder$ git remote add upstream 'the main repo url from the group/organization'

###Create Pull Request

Once you finished with new feature put your code into your own repo, then you could create a Pull Request to merge your new feature into main repo.