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>
    <logevents lecontinue="20150915105933|1456" />
  </query-continue>
  <query>
    <logevents>
      <item logid="1466" ns="2" title="User:Jasmin" pageid="0" logpage="0" userid="555" type="newusers" action="create" user="Jasmin" timestamp="2017-07-06T16:38:01Z" comment="" />
      <item logid="1465" ns="6" title="File:Screenshot Pixel Add Event Popup note.jpg" pageid="325" logpage="325" img_sha1="pvr5e2sah8a90nodnbn541e9rmn4c07" img_timestamp="2017-02-28T17:41:28Z" type="upload" action="upload" user="Silvio" timestamp="2017-02-28T17:41:28Z" comment="" />
      <item logid="1464" ns="6" title="File:Screenshot Pixel Add Event 1 note.jpg" pageid="324" logpage="324" img_sha1="iwg5ggfu3ezmxptzwze4pfodw44xey3" img_timestamp="2017-02-28T17:41:15Z" type="upload" action="upload" user="Silvio" timestamp="2017-02-28T17:41:15Z" comment="" />
      <item logid="1463" ns="6" title="File:2.png" pageid="320" logpage="319" type="move" action="move" user="Silvio" timestamp="2016-10-21T02:42:23Z" comment="">
        <move new_ns="6" new_title="File:Synology Disable HTTPS 2.png" />
      </item>
      <item logid="1462" ns="6" title="File:2.png" pageid="320" logpage="319" img_sha1="t1q8wcnw3mqnoh8kqyoo9lkpfjll9pv" img_timestamp="2016-10-21T02:41:13Z" type="upload" action="upload" user="Silvio" timestamp="2016-10-21T02:41:13Z" comment="" />
      <item logid="1461" ns="6" title="File:Screenshot2 mail de.png" pageid="316" logpage="316" img_sha1="6h8kyoo1nxie6h65bavpkyffl4fiixr" img_timestamp="2016-06-06T12:33:36Z" type="upload" action="upload" user="MichaelKliewe" timestamp="2016-06-06T12:33:36Z" comment="Screenshot of CardDAV Sync: mail.de" />
      <item logid="1460" ns="6" title="File:Screenshot mail de.png" pageid="315" logpage="315" img_sha1="oixm4sc6lu2zf49zndp07i5ue2y49zg" img_timestamp="2016-06-06T12:32:38Z" type="upload" action="upload" user="MichaelKliewe" timestamp="2016-06-06T12:32:38Z" comment="Screenshot of CalDAV: mail.de" />
      <item logid="1459" ns="2" title="User:MichaelKliewe" pageid="0" logpage="0" userid="554" type="newusers" action="create" user="MichaelKliewe" timestamp="2016-06-06T12:26:07Z" comment="" />
      <item logid="1458" ns="2" title="User:Lexikothek" pageid="0" logpage="0" userid="553" type="newusers" action="create" user="Lexikothek" timestamp="2016-04-03T17:31:27Z" comment="" />
      <item logid="1457" ns="2" title="User:Ar0" pageid="0" logpage="0" userid="552" type="newusers" action="create" user="Ar0" timestamp="2015-09-29T10:46:56Z" comment="" />
    </logevents>
  </query>
</api>