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>
    <alllinks galcontinue="BB&amp;T_Classic|7517" />
  </query-continue>
  <query>
    <pages>
      <page pageid="2791" ns="0" title="Tomb Raider: Legend" />
      <page pageid="2798" ns="0" title="Command &amp; Conquer: Generals – Zero Hour" />
      <page pageid="3124" ns="0" title="Treaty on the Non-Proliferation of Nuclear Weapons" />
      <page pageid="5540" ns="0" title="SCAT Airlines" />
      <page pageid="6000" ns="0" title="Cho Ki-chon" />
      <page pageid="6214" ns="0" title="Air Astana" />
      <page pageid="6264" ns="0" title="Bek Air" />
      <page pageid="7076" ns="0" title="Junior Kabananga" />
      <page pageid="7294" ns="0" title="2015–16 VTB United League" />
    </pages>
  </query>
</api>