Can someone explain to me

Tell us what’s happening:
Describe your issue in detail here.

** Add two spaces in front of the three child elements of main so your HTML is more readable.**
still new in html

  **Your code so far**
<html>
<body>
  <h1>CatPhotoApp</h1>
  <main>
  <h2>Cat  Photos</h2>
  <!-- TODO: Add link to cat photos -->
  <p>Click  here  to  view  more  cat  photos.</p>
  </main>
</body>
</html>
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.99 Safari/537.36

Challenge: Step 6

Link to the challenge:

Your elements within main element should be indented.