title: Web.config: put an comment inside xml attributes
body: <p>I want to put an comment in <code>web.config</code> file, something like this: </p>
  
  <pre><code>&lt;httpRuntime 
    requestValidationMode="2.0"      // require for [ValidateInput(false)] in .net-4.0
    requestPathInvalidCharacters=""  // include &amp; character in the url
    enableVersionHeader="false"      // disable X-AspNet-Version header
    /&gt;
  </code></pre>
  
  <p>Is there any way to put comments in this way, using server-side comments like <code>&lt;% %&gt;</code> or something?</p>