<!--
h1>Hello World</h1>-->
<h2>CatPhotoApp</h2>-->
<!--
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>
-->
When you want to comment out a sentence, do the following:
<!--
<h1>Hello World</h1>
-->
If you want to comment out a bigger section, such as paragraphs of code:
<!--
<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>
-->
Look closely at your h2 tags. It seems to be off. Hope this helps.