Posted about CI/CD... Getting started with CircleCI

Created a Blog Post on CI/CD. Looking to make these into a series of post and any feedback is welcome. What do you feel would be some interesting things to cover on this topic? Or perhaps what are some points that are overlooked and/or can easily be confusing?
https://dev.to/avantsekai/getting-started-in-ci-cd-using-circleci-353e