Learn HTML by Building a Cat Photo App - Step 20

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

Your code so far

<html>
  <body>
    <h1>CatPhotoApp</h1>
    <main>
      <section>
      <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>
      </section>
      <section>
        <h2>Cat Lists</h2>
        <h3>Things cats love:</h3>
        <u1>
      </section>
    </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/105.0.0.0 Safari/537.36

Challenge: Learn HTML by Building a Cat Photo App - Step 20

Link to the challenge:

please i need some help here

The instructions given are:

add an unordered list (ul ) element.

So just add the opening and closing tags of the requested element.

ul not u1