@luvr cant change after the fact as a user. You can try flagging your post and ask for it to be either moved or deleted(so you can repost it in the proper category if moving isn't possible).
U gotta pick the right category for the initial post
@recollection Correction: I just looked back through the official Twitter posts, and it seems you need to update either through the app or the website. Please download the app, launch it, and see if you can update it that way.
