Add a a new link to rightdrawer

rightdrawerconfig.js

angular.module('c8y.ui').decorator('c8yDocs', ($delegate) => {
   'ngInject';
  
   const listFn = $delegate.list.bind($delegate);
   $delegate.list = function() {
      return listFn().then(links => {
        links.push({
           {
            icon: 'c8y-book', // choose from http://styleguide.cumulocity.com/icons/fontawesome or http://styleguide.cumulocity.com/icons/cumulocity
            label: 'My link'
            url: 'http://example.com'
          },
        });
        return links;
      });
   }
  return $delegate;
});