title: Create xmlns using tinyxml
body: <p>I am new to tinyxml, I would like to generate the following xml file using tinyxml library. Could you please help me out with this
  many thanks</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt;    
      &lt;geo:Sim xmlns:geo="http://www.xxx/geo"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://www.xxx/geo file:/geoX.xsd"&gt;
   &lt;GG&gt;
   &lt;/GG&gt;
  &lt;/geo:Sim&gt;
  </code></pre>