The only thing to consider is that when you see this set of characters `<!--` everything from there is commented out until you see this `-->`; these are the opening and closing tag of an HTML element!
Notice how a closing comment tag (`-->`) has been added before the h3 HTML element to match the opening comment tag at the start of the sentence? We also added an opening comment tag (`<!--`) after it to match the closing tag at the end; in this way you have created two inline comments (one before the h3 element and one after).
Just remove the opening and closing tags of the comment.
Commments are very valuable because it helps you remember the purpose of a section of code. You can use a many comments as you like. In fact, comments are a sign of careful and thoughtful coding.