docs typo: iconurl -> icon-url

Author: davidcalhoun

leaflet-marker.html

@@ -372,7 +372,7 @@
 
 ##### Example
 
-    <leaflet-icon id="myicon" iconurl="https://stendhalgame.org/images/mapmarker/me.png"></leaflet-icon>
+    <leaflet-icon id="myicon" icon-url="https://stendhalgame.org/images/mapmarker/me.png"></leaflet-icon>
 
     <leaflet-marker latitude="51.5" longitude="-0.10" title="Some title" icon="myicon">
     </leaflet-marker>