Create a pull request to propose and collaborate on changes to a repository. These changes are proposed in a branch, which ensures that the master branch only contains finished and approved work. Pull requests can only be opened if there are differences between your branch and the upstream branch. You can specify which branch you'd like to merge your changes into when you create your pull request.
This is an example of creating a pull request through the Github repository.
Click on the ‘Fork’ button:
Go to ‘edit’ button marked in the square:
from IPython.display import Image
Image(filename = "img3.png")
Then make whatever change you want to do. Write a commit message that describes your changes. Click 'Commit changes' button.