Please i am totally new here and am confused

Tell us what’s happening:
Describe your issue in detail here.
Am asked to Add two spaces in front of the three child elements of main so your HTML is more readable.
How do I go about it please?

  **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/102.0.0.0 Safari/537.36

Challenge: Step 6

Link to the challenge:

The three elements within main are h2, comment (<!-- -->), and p. Add two spaces before the opening tag of each of these elements.

You need to put your cursor to the left of those three elements and press the space bar twice.