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>
    <revisions rvcontinue="7" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1" ns="0" title="Main Page">
        <revisions>
          <rev user="Admin" timestamp="2015-02-02T18:51:18Z" comment="Created page with &#039;[public]The Canadian Glycomics Network (GlycoNet) will build on Canada’s international leadership in glycomics over the last 50 years. Glycomics researchers (working in such di…&#039;" />
          <rev user="Admin" timestamp="2015-02-02T19:01:26Z" comment="" />
          <rev user="Admin" timestamp="2015-02-02T19:01:48Z" comment="" />
          <rev user="Admin" timestamp="2015-02-02T19:02:01Z" comment="" />
          <rev user="Admin" timestamp="2015-02-02T19:02:09Z" comment="" />
        </revisions>
      </page>
    </pages>
  </query>
</api>