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>
    <allimages gaicontinue="CNHLakesAuthorshipGuidelines_v4.0_17Jan16.pdf" />
  </query-continue>
  <query>
    <pages>
      <page pageid="592" ns="6" title="File:AgendaPSU 23Sep16.pdf" />
      <page pageid="588" ns="6" title="File:AnnualWorkshopMinutes3Jun16.docx" />
      <page pageid="702" ns="6" title="File:CNH-L Mendeley Instructions.pdf" />
      <page pageid="710" ns="6" title="File:CNH-L Mendeley Instructions2.pdf" />
      <page pageid="668" ns="6" title="File:CNHAuthorshipGuidelines1Sep2017.pdf" />
      <page pageid="887" ns="6" title="File:CNHAuthorshipGuidelines 20Nov2019.docx" />
      <page pageid="886" ns="6" title="File:CNHAuthorshipGuidelines 20Nov2019.pdf" />
      <page pageid="853" ns="6" title="File:CNHAuthorshipGuidelines 24Aug2018.docx" />
      <page pageid="821" ns="6" title="File:CNHAuthorshipGuidelines 28Aug2018.pdf" />
      <page pageid="113" ns="6" title="File:CNHGraphic.jpg" />
    </pages>
  </query>
</api>