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"?>
      <page pageid="1" ns="0" title="Main Page">
          <rev user="1164105" timestamp="2019-10-12T22:09:18Z" comment="/* The User Interface */" />
          <rev user="1223200" timestamp="2019-05-17T17:35:12Z" comment="/* Character Sheet Documentation */  fix broken link" />
          <rev user="1223200" timestamp="2019-05-17T17:33:10Z" comment="Update highlighted character sheet guides to a more relevant selection, adding link to Starfinder Official" />
          <rev user="1164105" timestamp="2019-02-14T18:38:27Z" comment="/* Beyond the Application */" />
          <rev user="4930" timestamp="2019-02-08T19:07:28Z" comment="" />
    <revisions rvcontinue="17401" />