title: Reading attribute of XML declaration in C#
body: <p>I got an XML file with following structure</p>
  
  <pre><code>&lt;?xml version="1.0"?&gt;
  &lt;?libxml version="1.0"?&gt;
  &lt;Lib&gt;
  ....
  &lt;/Lib&gt;
  </code></pre>
  
  <p>I am using XMLDocument and need to read the version of libxml....
  how should i do that?</p>