I haven't done a jam in a few years, so I'm not 100% sure anymore. There used to be 'no editing after the deadline' rules, but I don't see those here. I dunno, sorry! as long as you don't touch your upload, you should be ok (just a guess though!)
That makes sense, I feel like the "no editing rules" would apply more to the videogame itself, and not the project display page. I had pulled an all-nighter to push the game, and I realized that I should have probably informed the players on how to progress.
