Hi Laura! As Karl mentioned, the article you referenced is for Rise.com which is a separate subscription.
Are you looking to host your SCORM packages and share them with your learners? You might be interested in trying out Reach 360. It's an add-on to your Articulate 360 Teams plan and all seatholders and admins on your Articulate 360 Teams subscription are automatically users.
With Reach 360, you can import your third-party training and enroll your users. Check out this article to learn more: Reach 360: Import Third-Party Training.
I hope this helps!