Freddy33
If you already have a web site and can upload files to it, then it is very easy!
just export your game as HTML5, make a folder on your web site under public_html, and upload your game into that folder. On your main web page, put a link to your game's index.html file in the folder...
EDIT: if you want your game on the front page, then use an iFrame that points to the index.html file in the folder... (but only if your game is very small and loads quick).