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="Backstage" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="B&amp;Q" missing="" />
      <page ns="0" title="B. Armstrong" missing="" />
      <page ns="0" title="BIM Harding" missing="" />
      <page pageid="4182" ns="0" title="B.I.M. Harding" />
      <page pageid="15343" ns="0" title="BEAD and other hashtags" />
      <page pageid="15063" ns="0" title="BU21 (2018)" />
      <page pageid="10755" ns="0" title="Babes in the Wood (2011" />
      <page pageid="9494" ns="0" title="Babes in the Wood (2011)" />
      <page pageid="5949" ns="0" title="Baby With The Bathwater (2004)" />
      <page pageid="132" ns="0" title="Baby with the Bathwater (2004)" />
    </pages>
  </query>
</api>