Take a look at exercise 1 of sorting your friends, they show a way to do this.
Or, you could read this centering guide.
I feel like placing your friends names and centring them would be a helpful addition to this course, especially how the "what you'll be building" doesn't even accurately explain what you'' be creating. Seriously guys.
Or a great challenge to see how good your understanding is. At certain point, you will have to stop following instructions and try to figure out how you could achieve such a thing