Oooh ok, got it! thank you so much for the help, Wistpotion!

Hm I think you can. One of the admins posted on Discord channel that we could fix major bugs and add extra plataform support so... I guess change the description is totally fine.

Generally you are allowed to change everything around your game that isn't your game. So just don't upload a new playable file. Changing stuff on the page should be fine, adding forgotten collaborators, new cover image, all that jazz.