Update README.md

Author: Rachael Ellen

raster/raster-layer-url/README.md

@@ -20,15 +20,15 @@ To add a `RasterLayer` as an operational layer from an `ImageServiceRaster`:
 2. Create a `RasterLayer` from the raster
 3. Add it as an operational layer with `map.getOperationalLayers().add(rasterLayer)`
 
-## About the data
-
-This sample uses a [NOAA raster image service](https://gis.ngdc.noaa.gov/arcgis/rest/services/bag_hillshades_subsets/ImageServer). The service computes a hillshade image from the depth (in meters) of U.S. coastal waters.
-
 ## Relevant API
 
 * ImageServiceRaster
 * RasterLayer
 
+## About the data
+
+This sample uses a [NOAA raster image service](https://gis.ngdc.noaa.gov/arcgis/rest/services/bag_hillshades_subsets/ImageServer). The service computes a hillshade image from the depth (in meters) of U.S. coastal waters.
+
 ## Tags
 
 image service, raster