Trouble downloading UE source code

I am following the directions here: Unreal Engine 4 on GitHub - Unreal Engine

I have successfully linked my accounts; on the unrealengine.com site, for my account, I see my correct github username with a “disconnect” icon (since it is connected).

I got the confirmation email, verified my account, etc. It all looks good.

However, when I try to access the repos listed here I get 404 errors from github.
The repos:

What can I do to fix this?
I am not sure what next steps might be. As far as I can tell, I’ve done everything correctly.

Aha, I figured it out.

You will get an invite through GitHub to join the “Epic Games” organization.
You must accept this invite in order to access the source repos.

My confirmation email said “You’ve been added to the Developers team for the Epic Games organization. Developers has 224786 members and gives read access to 3 EpicGames repositories.”

It’d be nice if they told you this was needed before you click accept (: