update developer commentary

for weapon traits, crates and palettes
clarify that you don't need to update the wiki page manually

OpenRA.Mods.RA/LightPaletteRotator.cs

@@ -15,6 +15,7 @@ using OpenRA.Traits;
 
 namespace OpenRA.Mods.RA
 {
+	[Desc("Palette effect used for blinking \"animations\" on actors.")]
 	class LightPaletteRotatorInfo : ITraitInfo
 	{
 		public readonly string[] ExcludePalettes = {};