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>
    <links plcontinue="1|0|AquaShoko" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1" ns="0" title="Main Page">
        <links>
          <pl ns="0" title="2D Image Gel Based Tactile Sensing" />
          <pl ns="0" title="2 Kilowatt DC Motor Controller" />
          <pl ns="0" title="3D Printer Guide" />
          <pl ns="0" title="3D Printing (PLA)" />
          <pl ns="0" title="3D Printing (SLA)" />
          <pl ns="0" title="3D model of Lofaro Labs in ~.STL format" />
          <pl ns="0" title="ASL-Robot" />
          <pl ns="0" title="Add USB Ethernet to your Raspberry Pi Zero W" />
          <pl ns="0" title="Add USB Serial to your Raspberry Pi Zero W" />
          <pl ns="0" title="Android Robot Controller (ARC)" />
        </links>
      </page>
    </pages>
  </query>
</api>