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>
    <recentchanges rccontinue="20180814080159|3300" />
  </query-continue>
  <query>
    <recentchanges>
      <rc type="edit" ns="0" title="Accueil" pageid="1" revid="7450" old_revid="7449" rcid="3310" timestamp="2018-09-10T08:51:37Z" />
      <rc type="edit" ns="0" title="Accueil" pageid="1" revid="7449" old_revid="6542" rcid="3309" timestamp="2018-09-08T17:13:02Z" />
      <rc type="edit" ns="0" title="AcV" pageid="742" revid="7448" old_revid="2147" rcid="3308" timestamp="2018-09-08T16:56:47Z" />
      <rc type="edit" ns="0" title="Page de test code WIKI" pageid="3365" revid="7447" old_revid="7446" rcid="3307" timestamp="2018-08-29T15:08:38Z" />
      <rc type="edit" ns="0" title="Page de test code WIKI" pageid="3365" revid="7446" old_revid="6381" rcid="3306" timestamp="2018-08-29T15:07:51Z" />
      <rc type="edit" ns="0" title="Injection : réglage de l&#039;avance sur TDi" pageid="158" revid="7445" old_revid="6636" rcid="3305" timestamp="2018-08-24T08:10:47Z" />
      <rc type="edit" ns="0" title="Distribution: remplacement sur 5 cylindres diesel" pageid="914" revid="7444" old_revid="7392" rcid="3304" timestamp="2018-08-24T06:43:58Z" />
      <rc type="edit" ns="0" title="Refroidissement et joint de culasse" pageid="2060" revid="7443" old_revid="7442" rcid="3303" timestamp="2018-08-15T21:10:56Z" />
      <rc type="edit" ns="0" title="Refroidissement et joint de culasse" pageid="2060" revid="7442" old_revid="7394" rcid="3302" timestamp="2018-08-15T19:06:26Z" />
      <rc type="new" ns="0" title="Testsmileys" pageid="4357" revid="7441" old_revid="0" rcid="3301" timestamp="2018-08-14T08:32:51Z" />
    </recentchanges>
  </query>
</api>