Replace WMS service (#789)

* Update WmsLayerUrlSample.java

* Update README.md

Author: jenmerritt

ogc/wms-layer-url/README.md

@@ -20,7 +20,7 @@ The map will load automatically when the sample starts.
 
 ## About the data
 
-This sample uses a [U.S. National Weather Service radar map](https://nowcoast.noaa.gov/arcgis/services/nowcoast/radar_meteo_imagery_nexrad_time/MapServer/WMSServer?request=GetCapabilities&service=WMS). Because WMS services generate map images on-the-fly, this layer is always up-to-date with the latest [NOAA NEXRAD radar](https://www.ncdc.noaa.gov/data-access/radar-data/nexrad) observations.
+This sample uses a [U.S. National Weather Service radar map](https://nowcoast.noaa.gov/geoserver/observations/weather_radar/wms). Because WMS services generate map images on-the-fly, this layer is always up-to-date with the latest [NOAA NEXRAD radar](https://www.ncdc.noaa.gov/data-access/radar-data/nexrad) observations.
 
 ## Relevant API
 

ogc/wms-layer-url/src/main/java/com/esri/samples/wms_layer_url/WmsLayerUrlSample.java

@@ -76,8 +76,8 @@ public void start(Stage stage) {
       progressIndicator.setMaxSize(25, 25);
 
       // create a WMS layer
-      List<String> wmsLayerNames = Collections.singletonList("1");
-      String url = "https://nowcoast.noaa.gov/arcgis/services/nowcoast/radar_meteo_imagery_nexrad_time/MapServer/WMSServer?request=GetCapabilities&service=WMS";
+      List<String> wmsLayerNames = Collections.singletonList("base_reflectivity_mosaic");
+      String url = "https://nowcoast.noaa.gov/geoserver/observations/weather_radar/wms";
       wmsLayer = new WmsLayer(url, wmsLayerNames);
       // load the layer and add it as an operational layer
       wmsLayer.addDoneLoadingListener(() -> {