diff --git a/README.md b/README.md
index f062563..79de889 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,14 @@ class ArrayList< Card > {
   public boolean addAll(Collection<Card> card)  
 }
 
+enum Suit {
+  CLUBS,
+  SPADES,
+  HEARTS,
+  DIAMONDS
+}
+Card o-- Suit
+
 class Pile extends ArrayList {
   public static Pile createDeck(int numberOfCards)
   public Pile getCardsForPlayer(int number)