              },
                        {
                          src: 'https://cdnjs.cloudflare.com/ajax/libs/reveal.js/3.6.0/plugin/notes/notes.min.js',
                          async: true
                        }
                      ],
                      keyboard: { // for hama remote presenter:
                        38: 'next',
                        40: 'prev'
                      }
                    });

</script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquer