Note: After saving, you have to bypass your browser's cache to see the changes. Google Chrome, Firefox, Microsoft Edge and Safari: Hold down the ⇧ Shift key and click the Reload toolbar button. For details and instructions about other browsers, see Wikipedia:Bypass your cache.
$.when( mw.loader.using( ['mediawiki.util'] ), $.ready ).done( function() {
  mw.util.addPortletLink(
    'p-personal',
    mw.util.getUrl('Special:RecentChanges'),
    'Recent Changes',
    'pt-recentchanges',
    'View the Recent Changes',
    null,
    '#pt-preferences'
  );
});