README.md in aixm-0.2.1 vs README.md in aixm-0.2.2

@@ -105,10 +105,10 @@
 ##### Designated Point
 
 ```ruby
 designated_point = AIXM.designated_point(
   id: String
-  name: String
+  name: String or nil
   xy: AIXM.xy
   z: AIXM.z or nil
   type: :icao or :adhp, or :coordinates
 )
 designated_point.schedule = AIXM.schedule