1. Go to the repository
1. Locate the file you wish to edit
1. Click the `Edit this file` (pencil) icon in the top right corner
1. If prompted, fork the repository by clicking `Fork this repository`
1. Make your changes to the file, then write a brief commit message describing the changes
1. Click on the `Propose changes` button
1. On the next screen, click the `Create pull request` button
1. Provide a title and description for your pull request, and click on `Create pull request` again
1. Wait for the review and merge