Use US English instead of UK English

Author: Dimitar5555

data/fields/house.json

@@ -25,12 +25,12 @@
                 "description": "A house that is attached to another house on one side"
             },
             "terrace": {
-                "title": "Row of Terraced Houses",
+                "title": "Row of Townhouses",
                 "description": "A row of houses that are attached to each other in a line (mapping each house as a separate area is preferred)"
             },
             "terraced": {
-                "title": "Single Terraced House",
-                "description": "Individual house in a row of terraced houses"
+                "title": "Single Townhouse",
+                "description": "Individual house in a row of townhouses"
             }
         }
     },