When you edit a file in another user's repository, we'll automatically fork the repository and open a pull request for you.
- In another user's repository, browse to the folder that contains the file you want to edit. Click the name of the file you want to edit.
- Above the file content, click . At this point, GitHub forks the repository for you.
- Make any changes you need to the file.
Above the new content, click Preview.
Type a commit summary and, optionally, an extended description.
- Click Propose file change.
- Type a title and description for your pull request.
- Click Create pull request.