yeah sorry , the first zip file was for mac, and as it's my first time on itch.io i thought if i uploaded a webgl built, it would directly can be played on the browser, i still don't know how to do it though.
theres an option that you need to tick when you upload your file to itch.io, ‘this file will be played in browser’ its below your uploaded file
thanks X), i'm gonna look for it next time.