More detail you can see the slide: https://www.slideshare.net/appleboy/introduction-to-github-actions-145921786
* What is different GitHub Flow and Git Flow?
* What is GitHub Actions?
* How to write the simple workflow?
* What's problem in GitHub Actions UI?
* What's problem with Secrets in GitHub Actions?
* How to write your first GitHub Actions and upload to the marketplace?
* What's a problem with environment variables in GitHub Actions?