Continuous Integration (CI) workflows are considered a best practice these days. As in, you work with your version control system (Git), and as you do, CI is doing work for you like running tests, sending notifications, and deploying code. That last part is called Continuous Deployment (CD). But shipping code to a production server often requires paid services. With GitHub Actions, Continuous Deployment is free for everyone. Let’s explore how to set that up.
Source: Continuous Deployments for WordPress Using GitHub Actions | CSS-Tricks