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="Belastingbeperkende_maatregelen|96" />
  </query-continue>
  <query>
    <pages>
      <page pageid="14" ns="0" title="Wiki Noodmaatregelen Waterkeringen - homepage" />
      <page pageid="91" ns="0" title="Ophogen dijkkruin ter compensatie van hoogtetekort" />
      <page pageid="94" ns="0" title="Waterstandsverhogende maatregelen" />
      <page pageid="95" ns="0" title="Sloot afdammen" />
      <page pageid="120" ns="0" title="Beveiliging buitentalud tegen erosie" />
      <page pageid="123" ns="0" title="Bescherming binnentalud en kruin met folie of geotextiel verzwaard met zandzakken" />
      <page pageid="211" ns="0" title="Dimensionering" />
      <page pageid="654" ns="0" title="Opleidingen" />
      <page pageid="772" ns="0" title="Archief OTO" />
      <page pageid="1175" ns="0" title="Bescherming binnentalud en kruin met een bekramming" />
    </pages>
  </query>
</api>