document the various overlay and animation change traits

OpenRA.Mods.Cnc/WithCargo.cs

@@ -1,6 +1,6 @@
 #region Copyright & License Information
 /*
- * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
+ * Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
  * This file is part of OpenRA, which is free software. It is made
  * available to you under the terms of the GNU General Public License
  * as published by the Free Software Foundation. For more information,
@@ -17,10 +17,12 @@ using OpenRA.Traits;
 
 namespace OpenRA.Mods.Cnc
 {
+	[Desc("Renders the cargo loaded into the unit.")]
 	public class WithCargoInfo : ITraitInfo, Requires<CargoInfo>, Requires<IBodyOrientationInfo>
 	{
 		[Desc("Cargo position relative to turret or body. (forward, right, up) triples")]
 		public readonly WRange[] LocalOffset = { };
+		[Desc("Passenger CargoType to display.")]
 		public readonly string[] DisplayTypes = { };
 
 		public object Create(ActorInitializer init) { return new WithCargo(init.self, this); }