One cool feature on GitHub is that you can add a dynamic badge to your README.md file that shows the status of your tests.
It's a great way to show off that your code is well-tested, and that the tests are passing without users having to go check the actions tab.
https://github.com/<OWNER>/<REPOSITORY>/actions/workflows/<WORKFLOW_FILE>/badge.svg
Your README.md file is written in markdown, and the syntax for adding an image is:

Paste the URL of your GitHub repo into the box and run the GitHub checks.