Sorry for my discouraging words towards you... You can post your website on itch by simply scrolling down to the in the posting section and find the drop down box which refers to "Kind of project" and select the HTML ONE, then you can scroll again downside to reach the upload section and drop your all files zipped with a "index.html" named file which would the main start point of the project.. Make sure to enter you Website link in the description cuz itch website viewer is kinda slow and sucks. Good luck for your future projects and jam.