You've achieved a lot in this chapter. It's only Chapter 2 and already you have:
Created a course, and configured it to use the right short and long name, description, and format.
Structured your course—created a set of individual topics (or weeks) complete with description, and maybe a welcome message too.
Assigned other teaching staff to help you manage your courses.
Set an enrollment key that you can give to students when the time is right.
Of course, a student enrolling on your Moodle course now won't learn very much—but that's about to change. So keep the enrollment key secret for now. By the end of Chapter 3, you'll have content online and might be ready to let your students start working with it.