I see how to change the settings and the documentation, but

I see how to change the settings and the documentation, but what completely escapes me here is how to get my first affiliate to sign up. Is there a page? I saw some short codes, but it's not clear how this works. I activated the membership add-on, so now how do I get my affiliates to sign up? Where do they go?

I would like to be able to simply add someone manually as well but it doesn't look like that is an option?