1. If you don't have git on your machine, install it.
Fork this repository by clicking on the fork button on the top of this page. This will create a copy of this repository in your account.
Now clone the forked repository to your machine. Go to your GitHub account, open the forked repository, click on the code button and then click the copy to clipboard icon.
Open a terminal and run the following git command:
git clone "<URL that you've just copied>"
git remote add upstream <original repository>
This will also avoid any merge conflicts while committing new changes
git pull upstream master
Always create new branch
git checkout -b <feature-name>
git add .
git status
Write commit message as "Small Message", Click Here to know about some commit's messages.
git commit -m "Write a meaningfull but small commit message"
git push origin <branch-name>
Just hit the create a pull request button, you must write a PR message to clarify why and what are you contributing.