How do you register?

I may be completely stupid but I have been looking through threads, been to discord etc and I cannot find anything that tells me how to join this league. I suppose it is so blatently obvious and easy that I will be made the fool but could someone please tell me how to register a team for the new season (20?)

create a team, then select 'join a league', 'multiplayer', find 'Cabalvision Official League' & click 'register' finally
select the tournament you wish to join 'champion ladder 20' - then you're in!