Learn HTML by Building a Cat Photo App - Step 12

Tell us what’s happening:
Describe your issue in detail here.
In line 7 I am trying to make the words cat photo into a link. When I run it, it says I created a successful link. When I try to go on it gives me an error about my href not being correct. It’s probably one simple thing, but this program won’t tell me what I’m doing wrong.
Your code so far

<html>
  <body>
    <main>
      <h1>CatPhotoApp</h1>
      <h2>Cat Photos</h2>
      <!-- TODO: Add link to cat photos -->
      <p>Click here to view more <a href="https//freecatphotoapp.com">cat photos</a>.</p>
      <a href="https://freecatphotoapp.com">link to cat pictures</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/107.0.0.0 Safari/537.36

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

Link to the challenge:

you are missing the colon : character in the link