Unfortunately I couldn't play your game cause the browser version is not set to be played on the itch.io servers, you can fix that in the itch game page settings its just a check button .
Good Luck ^_^
itch.io doesn't support any unity version beyond 5.3 unfortunately
You mistaken, my game is webGL and its on itch and many other games
Put the build in a file and zip the file and then upload it and check(Is this a web game) check mark on.
Fixed, thanks for the info
