Hi there, I'm Matt Sergej and can help you (24 years a webmaster, former technical writer - Doc-To-Help Certified Trainer).
I guess you need a document explaining all HTML (HTML5) tags with examples. The plan is to create a nice Word document (and PDF version) that will explain the tag, its syntax, placement in the code structure, at least one example and showing a screenshot of a web page of the example(s).
Yes, I can deliver the document in 7 days.
Looking forward to your reply,
Matt S