update readme

README.md

@@ -37,13 +37,15 @@ The getCapabilities request generates dynamically a response based on the `asset
 
 `&request=getScene`
 
-`&layers=layer_1,layer_2`
+`&layers=Buildings_Hamburg`
 
-`&boundingbox=lon_1,lat_1,lon_2,lat_2`
+`&boundingbox=lon_1,lat_1,lon_2,lat_2` (optional)
+
+`&crs=EPSG:4326`
 
 When the query parameters are not valid an xml exception is returned.
 
 ## Examples
 
 * [localhost getCapabilities](http://localhost:9000/service/v1?service=3DPS&acceptversions=1.0&request=getCapabilities)
-* [localhost getScene](http://localhost:9000/service/v1?service=3DPS&acceptversions=1.0&request=getScene&layers=Niedernhall&boundingbox=9.6158087151,49.2935455509,9.6202933686,49.2963390299)
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+* [localhost getScene](http://localhost:9000/service/v1?service=3DPS&acceptversions=1.0&request=getScene&layers=Niedernhall&boundingbox=9.6158087151,49.2935455509,9.6202933686,49.2963390299&crs=EPSG:4326)
\ No newline at end of file