How to add markup to my site

Hello, I am working for a moving company. Recently I have created a new web page. I want to add a markup to my site to perform well in the Search engine result page. I have done a robots file. I also uploaded a sitemap to Google that contained this page too. Please reply to my post. Thank You. Here is the URL

I think you enlisted on the wrong forum for this. This is all about home assistant (home automation and domotica). What you want is a forum for we developers or something like that. Someone on here might know the answer though, but I don’t know if you’re ever going to get the answer on here.