In order to get started with CircleCI, you will need to either create a GitHub account at https://github.com/ or a Bitbucket account at https://bitbucket.org/product.
CircleCI prerequisites
Creating a GitHub account
We covered in detail how to create a GitHub account in Chapter 9, Installation and Basics of Travis CI, in the Creating a GitHub account section.
Creating a Bitbucket account
We will create a Bitbucket account and once again use the username of packtci for our user:
Once you click the green Continue button, you will be redirected to a page like this:
You...