I don't understand the challenge

Tell us what’s happening:
"You should set the value of your placeholder attribute to “cat photo URL”.
i don’t understand this challenge

Your code so far


<h2>CatPhotoApp</h2>
<main>
<p>Click here to view more <a href="#">cat photos</a>.</p>

<a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>

<p>Things cats love:</p>
<ul>
  <li>cat nip</li>
  <li>laser pointers</li>
  <li>lasagna</li>
</ul>
<p>Top 3 things cats hate:</p>
<ol>
  <li>flea treatment</li>
  <li>thunder</li>
  <li>other cats</li>
</ol>
<input type="text" placeholder ="https://bit.ly/fcc-relaxing-cat">
</main>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.122 Safari/537.36.

Challenge: Add Placeholder Text to a Text Field

Link to the challenge:

Hi , "You should set the value of your placeholder attribute to “cat photo URL”.

placeholder =“cat photo URL” .

Sometimes challenges are confusing yes .