Clean game, nice to see brackeys tutorials are still being recreated. Tip: use the .zip format to make it playable on the itch.io app and every other pc that does not have winrar.
I see you only have 4 votes. with browser support you will probably have more votes in your next Jam. Many people are too lazy to download your game. maybe you can upload it after the jam and people will play it more. Unfortunately, you need at least 20 votes for this jam to get results.
Nope, in Unity you can just click a button and everything happens for you!
Step by step:
in your unity project, go to "File" -> "Build settings" -> select WebGL as platform and click switch platform. The you can build the game. zip everything in a .zip file and upload it to itch.io. Then you can select "this file will be played in browser". and you're done.
