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="Baofeng_UV-5R" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="BIOS Versus PRAM" missing="" />
      <page ns="0" title="Badger (person)" missing="" />
      <page ns="0" title="Baofeng GT-3" missing="" />
      <page pageid="2643" ns="0" title="BIOS" />
      <page pageid="2099" ns="0" title="Backitude" />
      <page pageid="2187" ns="0" title="Bad Verizon ESN Number" />
      <page pageid="838" ns="0" title="Bakers Pride Pizza Oven Model MO2T" />
      <page pageid="3251" ns="0" title="Balanced Feed Line and Antenna Tuner Impedance" />
      <page pageid="1341" ns="0" title="Bannerbomb Exploit" />
      <page pageid="2733" ns="0" title="Baofeng BF-F8HP" />
    </pages>
  </query>
</api>