You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages gaifrom="02 qtcreator qtversions.jpg" />
  </query-continue>
  <query>
    <pages>
      <page pageid="3742" ns="6" title="File:01 MADDE create key.jpg" />
      <page pageid="3656" ns="6" title="File:01 client start.png" />
      <page pageid="3768" ns="6" title="File:01 linux qtcreator add qmake.png" />
      <page pageid="3704" ns="6" title="File:01 mac qtcreator madde.png" />
      <page pageid="3658" ns="6" title="File:01 pccon select.jpg" />
      <page pageid="3555" ns="6" title="File:01 project created.png" />
      <page pageid="3659" ns="6" title="File:01 qtcreator components.JPG" />
      <page pageid="3769" ns="6" title="File:02 linux qtcreator select qmake.png" />
      <page pageid="3705" ns="6" title="File:02 mac usbnetwork.png" />
      <page pageid="3661" ns="6" title="File:02 pccon config.jpg" />
    </pages>
  </query>
</api>