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="Pathloss_4.0_installation_&amp;_maintenance" />
  </query-continue>
  <query>
    <pages>
      <page pageid="233" ns="0" title="Basic Link Design Steps" />
      <page pageid="232" ns="0" title="Fade Mechanisms" />
      <page pageid="216" ns="0" title="FetchSRTM" />
      <page pageid="94" ns="0" title="Geobase" />
      <page pageid="4" ns="0" title="Global Land Cover Characteristics Data Base (GLCC World)" />
      <page pageid="195" ns="0" title="MRLC" />
      <page pageid="205" ns="0" title="NED data in GridFloat format" />
      <page pageid="237" ns="0" title="NLCD" />
      <page pageid="33" ns="0" title="Pathloss 4.0 common problems" />
      <page pageid="19" ns="0" title="Pathloss 4.0 downloads" />
    </pages>
  </query>
</api>