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="Document_GPF_activities|1" />
  </query-continue>
  <query>
    <pages>
      <page pageid="7" ns="0" title="Hold regular telecons" />
      <page pageid="1067" ns="0" title="Ensure software is usable by Suzanne Pierce" />
      <page pageid="1070" ns="0" title="Suzanne Pierce should make software executable by others" />
      <page pageid="1226" ns="0" title="Write about making data accessible" />
      <page pageid="1240" ns="0" title="Develop proposal for special issue" />
    </pages>
  </query>
</api>