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>
    <pageswithprop>
      <page pageid="8" ns="0" title="Antimicrobials:Information" value="Antimicrobials:  Developing new antimicrobials to fight fungal and bacterial infections" />
      <page pageid="9" ns="0" title="Chronic Diseases:Information" value="Chronic Diseases: Developing novel treatments to rare genetic diseases" />
      <page pageid="10" ns="0" title="Diabetes and Obesity:Information" value="Diabetes and Obesity: Treating nutritional disorders, obesity and related illnesses" />
      <page pageid="11" ns="0" title="Rare Genetic Diseases:Information" value="Rare Genetic Diseases: Providing more effective therapeutic proteins for treatment of a host of conditions" />
      <page pageid="24" ns="0" title="Logos Templates" value="Logos/Templates" />
      <page pageid="66" ns="0" title="EDITraining" value="GlycoNet Diversity and Inclusion Bootcamp" />
    </pageswithprop>
  </query>
</api>