title: Github actions and badges show percentage data
body: <p>I have read about the way to create and add a <a href="https://help.github.com/en/articles/configuring-a-workflow#adding-a-workflow-status-badge-to-your-repository" rel="noreferrer">custom workflow badge</a> which will show whether the workflow passes or fails. But here's a question. Is it possible to output some percentage data on the badge and how to output this data?</p>