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="Lein_Saatgutvermehrung" />
  </query-continue>
  <query>
    <pages>
      <page pageid="32" ns="0" title="Boden Kompostieren" />
      <page pageid="28" ns="0" title="Brennnessel Vermehrung" />
      <page pageid="51" ns="0" title="Brombeeren Vermehrung" />
      <page pageid="91" ns="0" title="Erntefotos" />
      <page pageid="118" ns="0" title="Grünlilien Vermehrung" />
      <page pageid="59" ns="0" title="Ingwer Vermehrung" />
      <page pageid="30" ns="0" title="Johannisbeeren-Strauch Vermehrung" />
      <page pageid="74" ns="0" title="Kapuzinerkresse Saatgutvermehrung" />
      <page pageid="60" ns="0" title="Kompost indoor" />
      <page pageid="153" ns="0" title="Kurkuma Vermehrung" />
    </pages>
  </query>
</api>