add rules on horse barding

rules.tex

@@ -447,7 +447,13 @@ Prices for weapons are placed next to the weapon in chapter \ref{combat}, page \
 
 	Horse &   &  5 gp \\
 
-	War Horse &   &  8 gp \\\hline
+	War Horse &   &  8 gp \\
+
+	Leather Barding &   &  10 sp \\
+
+	Chain Barding &   &  20 sp \\
+
+	Plate Barding &   &  18 sp \\\hline
 
 \end{tcolorbox}