Learn HTML by Building a Cat Photo App - Step 12

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

i dont understand what to do here
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>
    <a href="https://freecatphotoapp.com">https://freecatphotoapp.com</a>
    <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
  </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/97.0.4692.99 Safari/537.36

Challenge: Learn HTML by Building a Cat Photo App - Step 12

Link to the challenge:

hey there! what kind of help do you need? how can we help you?

im new to coding and simple do not understand what these things mean is there any books or anything to help with these steps/lessons

thanks for your quick response