You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allpages gapfrom="Taylor series" />
  </query-continue>
  <query>
    <pages>
      <page pageid="3311" ns="0" title="TDMA.f90 - Solution of system of linear equations by Thomas method" touched="2016-05-19T15:00:09Z" lastrevid="23617" counter="11166" length="2330" />
      <page pageid="1531" ns="0" title="TDMA 11.f90 - Solution of system of linear equatrions by Thomas method" touched="2005-09-21T15:45:04Z" lastrevid="2660" counter="6851" length="4843" />
      <page pageid="1624" ns="0" title="TVD scheme" touched="2006-05-07T02:36:07Z" lastrevid="3329" counter="25511" length="676" />
      <page pageid="1580" ns="0" title="Taylor number" touched="2006-10-04T10:56:28Z" lastrevid="2590" counter="7659" length="512" new="" />
    </pages>
  </query>
</api>