Update readme

README.md

@@ -16,7 +16,8 @@ Kikojas.nearby(lat, lng, {
     categories: ['bus', 'park', 'shopping', 'hospital', 'school'],
     poiLimit: 5,
     popupContent: '<em>HTML</em> is possible here.',
-    noPoiLink: true
+    noPoiLink: true,
+    lockScroll: false,
     searchDistance: 2,
     callback: function(map, mainMarker, pois){}
 });
@@ -41,6 +42,8 @@ Kikojas.nearby(lat, lng, {
 
 *noPoiLink*: Do not link the pois to Kikojas.
 
+*lockScroll*: Use zoom controls instead of wheel scroll.
+
 *seachDistance*: The search radius.
 
 *defaultZoom*: Default zoom for map.