You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allredirects garcontinue="Jordan_Wayne_Tolbert" />
  </query-continue>
  <query>
    <pages>
      <page pageid="644" ns="0" title="Brenton Morre" />
      <page pageid="646" ns="0" title="Chris Knight" />
      <page pageid="1690" ns="0" title="Chris Paul" />
      <page pageid="4016" ns="0" title="Crossover" />
      <page pageid="2830" ns="0" title="Dennis Rodman" />
      <page pageid="3469" ns="0" title="Dwight Howard" />
      <page pageid="1695" ns="0" title="Dwight Myvett" />
      <page pageid="4807" ns="0" title="Edvinas Šeškus" />
      <page pageid="1692" ns="0" title="Gerard Arcement" />
      <page pageid="1067" ns="0" title="James Naismith" />
    </pages>
  </query>
</api>