minor ui improvement

services/templates/services/antenna_map.html

@@ -50,7 +50,7 @@ function init_map (map, options) {
                 content += '<b>SSID :</b> ' + feature.properties.ssid + '<br>';
             }
             if (feature.properties.orientation) {
-                content += '<b>Orientation :</b> ' + feature.properties.orientation + '<br>';
+                content += '<b>Orientation :</b> ' + feature.properties.orientation + '°<br>';
             }
             if (content) {
                 layer.bindPopup(content);