Generate Maps with Jekyll

mappa.html

<link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.0/dist/leaflet.css" />
<script src="https://unpkg.com/leaflet@1.0.0/dist/leaflet.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/Leaflet.awesome-markers/2.0.2/leaflet.awesome-markers.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/Leaflet.awesome-markers/2.0.2/leaflet.awesome-markers.min.js"></script>

<style>
  #map{ height: 500px }
</style>

<div class="row"> <div class="col-md-2">Mappa:</div><div class="col-md-4"> <div id="map"></div> </div> </div>

<script>
  //crea lo stile dei "segnaposto"
  var houseMarker = L.AwesomeMarkers.icon({
  icon: 'home',
  prefix: 'fa',
  markerColor: 'green'
  });

  //crea la lista dei "segnaposto"
  var markerList=[];
  {% for member in site.data.musei %}
    markerList.push([{{member.lat}}, {{member.lon}}, "{{member.denominazione|uri_escape}}", "{{member.indirizzo}}"]);
  {% endfor %}

  // inizializza la mappa
  var map = L.map('map')

  // create the tile layer with correct attribution
  var osmUrl='http://{s}.tile.openstreetmap.fr/hot/{z}/{x}/{y}.png';
  var osmAttrib='&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>, Tiles courtesy of <a href="http://hot.openstreetmap.org/" target="_blank">Humanitarian OpenStreetMap Team</a>';
  var osm = new L.TileLayer(osmUrl, {minZoom: 6, maxZoom: 19, attribution: osmAttrib});

  var sumLat = 0.;
  var sumLon = 0.;
  var countMarkers=0;

  for (var i=0; i<markerList.length; i++) {

        //seleziona le variabili da far vedere sul POPup
          var lat = markerList[i][0];
          var lon = markerList[i][1];
          var popupText1 = markerList[i][2];
          var popupText2 = markerList[i][3];

          //visualizza i POI su mappa
          if (!isNaN(lat) && !isNaN(lon)) {
            var markerLocation = new L.LatLng(lat, lon);
            var marker = new L.Marker(markerLocation, { icon: houseMarker} );
            map.addLayer(marker);
            marker.bindPopup(decodeURI(popupText1 + popupText2));
            sumLat += lat;
            sumLon += lon;
            countMarkers++;
          }
  }

  //inizializza il livello (e visualizza tutti i punti)
  map.addLayer(osm).setView([sumLat / countMarkers, sumLon / countMarkers], 8);

  </script>

  <div class="row"> <div class="col-md-2"><a href="http://dati.toscana.it/dataset/rt-musei/resource/164d3a36-ede9-44a7-8f01-d9431f9f0cff">Fonte dei dati OpenToscana</a></div><div class="col-md-4"> <div id="map"></div> </div> </div>