Guide

1. Log in to GitHub and go to your profile by clicking on your profile picture at the top right corner.

2. Select 'Your profile'.

3. Scroll down to where your pinned repositories are displayed and click on the 'Customize your pins' button.

4. A list of your repositories will appear. Click on the checkboxes next to the repositories you want to pin.

5. After selecting your repositories, click 'Save pins' to apply the changes.

6. By following these steps, pinned repositories help highlight your most important work, making it easier for visitors to see the projects you want to showcase.