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>
    <alllinks galcontinue="BETTERAVE_Rossa_mammouth|20669" />
  </query-continue>
  <query>
    <pages>
      <page pageid="457" ns="0" title="BETTERAVE bull&#039;s blood" />
      <page pageid="11759" ns="0" title="Courge cireuse Hua sai" />
      <page pageid="11814" ns="0" title="COURGE DECORATIVE calebasse bidao" />
      <page pageid="20664" ns="0" title="BETTERAVE fourragère jaune Eckendorf" />
      <page pageid="20670" ns="0" title="BETTERAVE fourragère jaune géante de Vauriac" />
      <page pageid="20671" ns="0" title="BETTERAVE fourragère géante rouge" />
      <page pageid="22611" ns="0" title="BETTERAVE Jaune eckendorf" />
      <page pageid="22612" ns="0" title="BETTERAVE Rossa mammouth" />
      <page pageid="30506" ns="0" title="BETTERAVE detroit 2" />
      <page pageid="31720" ns="0" title="BETTERAVE à feuilles rouges" />
    </pages>
  </query>
</api>