title: need to add comments in an existing xml document
body: <p>I need to add comments in an existing xml document.a sample xml is shown below i need to write code in c#.  XML serialization was used to generate this xml
  any help would be great...
  thanks in advance</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;Person&gt;
  &lt;Name&gt;Job&lt;/Name&gt;
  &lt;Address&gt;10dcalp&lt;/Address&gt;
  &lt;Age&gt;12&lt;/Age&gt;
  &lt;/Person&gt;
  </code></pre>