+{% block extrahead %}
+ <link rel="stylesheet" type="text/css" media="all" href="{% static 'contrib/leaflet-1.9.4/leaflet.css' %}">
+ <link rel="stylesheet" type="text/css" media="all" href="{% static 'contrib/leaflet.markercluster-1.4.1/MarkerCluster.css' %}">
+ <link rel="stylesheet" type="text/css" media="all" href="{% static 'contrib/leaflet.markercluster-1.4.1/MarkerCluster.Default.css' %}">
+ <meta property="og:type" content="website">
+ <meta property="og:title" content="Mapa Wolnych Lektur">
+ <meta property="og:image" content="{% static 'references/preview.png' %}">
+ <meta property="og:image:alt" content="Mapa miejsc w książkach na Wolnych Lekturach">
+ <meta property="og:image:width" content="1200">
+ <meta property="og:image:height" content="630">
+
+{% endblock %}
+
+