IN THIS I HAVE CREATED COMMENTS.SO READ THAT AND UNDERSTAND HOW TO ADD A EMBED VIDEO TO A HTML.
Hi, you haven't actually created comments, for a html comment it is <!--i am a comment--> you see? you missed out the !-- and -- at the start and end respectively.
<!--i am a comment-->
Nice i did something like this a while ago: https://repl.it/@VMTU/InbornBuoyantVideogames#index.html