Step 15 is not making sense

What number should I put in <?>. Should I give it it’s own line?

  **Your code so far**
<html>
<body>
  <h1>CatPhotoApp</h1>
  <h3><main>
    <h2>Cat Photos</h2>
    <!-- TODO: Add link to cat photos -->
    <p>Click here to view more <a target="_blank" href="https://freecatphotoapp.com">cat photos</a>.</p>
    <a href="https://freecatphotoapp.com"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
  </main><h3>
</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 15

Link to the challenge:

You shouldn’t have a h3 element. That isn’t mentioned in the instructions. You need a section element. That section element needs to be inside the main element. Currently your main element is inside of your new h3 element.