Add Google map to Serene dashboard

GoogleMapSample_DashboardIndex.cshtml

@section ContentHeader {
    <h1>@LocalText.Get("Navigation.Dashboard")<small>@Html.Raw(Texts.Site.Dashboard.ContentDescription)</small></h1>
    <script src="https://maps.googleapis.com/maps/api/js"></script>
}

<div id="MapContainer" style="width: 700px; height: 400px;">
</div>

<script type="text/javascript">
    $(function() {
        new Serenity.GoogleMap($('#MapContainer'), {
            latitude: 11,
            longitude: 12,
            zoom: 10,
            markerTitle: 'The Company',
            markerLatitude: 11,
            markerLongitude: 12
        });
    });
</script>