Declare the Doctype of an HTML Document Help me please

Tell us what’s happening:

Your code so far

 <!DOCTYPE html>
  <!-- Your HTML code goes here -->

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36.

Link to the challenge:

I am a little confused here. Do u need help or is this a challenge?