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="City_and_the_School" />
  </query-continue>
  <query>
    <pages>
      <page pageid="280" ns="0" title="BYOD Guides" />
      <page pageid="517" ns="0" title="Background" />
      <page pageid="107" ns="0" title="Bibliography Writing" />
      <page pageid="79" ns="0" title="Book Creator App" />
      <page pageid="154" ns="0" title="Bullying - Responding to and Preventing" />
      <page pageid="172" ns="0" title="Canteen" />
      <page pageid="103" ns="0" title="Career Advice" />
      <page pageid="582" ns="0" title="Character Strengths" />
      <page pageid="555" ns="0" title="Charities" />
      <page pageid="132" ns="0" title="City Safety" />
    </pages>
  </query>
</api>