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="Equal_Pay_Day_in_Deutschland|221" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1" ns="0" title="Textauszeichnungen" />
      <page pageid="14" ns="0" title="Equal Pay Day in Deutschland" />
      <page pageid="16" ns="0" title="Unbereinigter Gender Pay Gap" />
      <page pageid="30" ns="0" title="Equal Pay Day (Aktionstag)" />
      <page pageid="34" ns="0" title="Gender Pay Gap in Europa" />
      <page pageid="54" ns="14" title="Kategorie:Equal Pay Day" />
      <page pageid="83" ns="0" title="Gender Pay Gap" />
      <page pageid="84" ns="0" title="Equal Pay Day" />
      <page pageid="274" ns="0" title="Berechnung des Equal Pay Day" />
    </pages>
  </query>
</api>