Your answer is right, but you should copy the sentence in example and put it in <p> tag.
Here is the solution:
<h1>Hello World</h1>
<h2>CatPhotoApp</h2>
<p>Hello Paragraph</p>
<p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
“placeholder text” is just temporary text that webdevelopers use when building websites. It allows you to get an idea what the page will look like before you have actual content.
In this excercise you have to replace <p>Hello Paragraph</p> with <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>