title: How to add comments into a Xaml file in WPF?
body: <p>I used this syntax as I found online but it throws an error:</p>
  
  <pre><code>xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  &lt;!-- Cool comment --&gt;
  xmlns:System="clr-namespace:System;assembly=mscorlib"
  </code></pre>
  
  <blockquote>
    <p>'Name cannot begin with the '&lt;' character, hexadecimal value 0x3C.
    Line 4, position 5.' XML is not valid.</p>
  </blockquote>