The simplest way to create a pull-request and contribute code to open source projects on Github

Make a github account

Go to the project you want to contribute to

Press the “fork” button

Check out your forked copy of the project

git clone https://github.com/YOUR_USER_NAME_HERE/FORKED_PROJECT_NAME_HERE.git

Create a new branch and check it out (change “branch-name” to something descriptive of your work)

git checkout -b branch-name

Make your changes

Add each new or modified file to your commit :

git add path/to/file/file_name.c

Commit your change to your local branch

git commit -m "Add a comment about your changes here"

Sync your fork in case there have been any additions to the primary repository since you started your work

git remote add upstream https://github.com/original-owner-username/original-repository.git
git fetch upstream
git checkout master
git merge upstream/master

Push your changes to your forked repository on github

git push --set-upstream origin branch-name

Go to the page on github for your forked repository and press the “Compare & Pull Request” button. Follow the directions to create the pull request.

(adapted from https://www.digitalocean.com/community/tutorials/how-to-create-a-pull-request-on-github)