Changed TRSObject to TRSObjectArray for TRSObjectArray documentation

Running the documentation example throws an error since its trying to assign a TRSObject to an TRSObjectArray. The changed example should run now without errors. Also 'bank' is not an object but 'Bank booth' is.

Author: jacz24

osrs/position/map/objects.simba

@@ -157,7 +157,7 @@ var
   objs: TRSObjectArray;
 begin
   Map.Setup([ERSChunk.VARROCK]);
-  objs := TRSObject.Create(ObjectsJSON.GetByName('bank'));
+  objs := TRSObjectArray.Create(ObjectsJSON.GetByName('Bank booth')); 
 end;
 ```
 *)