You seem to have compiled it for Windows. So, someone will have to actually download it to their PC to run it.
If you want it to do the web thing like I did, you need to make a web build in the Ren'Py console:
Then, once you have that (will be in the `XXX-1.0-dists/` directory and called something like `XXX-1.0-web.zip`.
Now you go to your itch.io game page, and upload it, then click the box saying it can be played in the browser: