Update wmts-hidpi, add nicer-api-docs

nicer-api-docs/examples/wms-image.js

@@ -0,0 +1,21 @@
+var layers = [
+  new ol.layer.Tile({
+    source: new ol.source.MapQuest({layer: 'sat'})
+  }),
+  new ol.layer.Image({
+    source: new ol.source.ImageWMS({
+      url: 'http://demo.opengeo.org/geoserver/wms',
+      params: {'LAYERS': 'topp:states'},
+      serverType: 'geoserver',
+      extent: [-13884991, 2870341, -7455066, 6338219]
+    })
+  })
+];
+var map = new ol.Map({
+  layers: layers,
+  target: 'map',
+  view: new ol.View2D({
+    center: [-10997148, 4569099],
+    zoom: 4
+  })
+});