Comments for mediator example.

mediator/src/main/java/com/iluwatar/App.java

@@ -1,5 +1,12 @@
 package com.iluwatar;
 
+/**
+ * 
+ * Mediator encapsulates how set of objects (PartyMember) interact.
+ * Instead of referring to each other directly they
+ * use the mediator (Party) interface.
+ *
+ */
 public class App 
 {
     public static void main( String[] args )

mediator/src/main/java/com/iluwatar/Party.java

@@ -1,5 +1,10 @@
 package com.iluwatar;
 
+/**
+ * 
+ * Mediator interface.
+ *
+ */
 public interface Party {
 
 	void addMember(PartyMember member);

mediator/src/main/java/com/iluwatar/PartyMember.java

@@ -1,5 +1,10 @@
 package com.iluwatar;
 
+/**
+ * 
+ * Interface for party members interacting with Party.
+ *
+ */
 public interface PartyMember {
 
 	void joinedParty(Party party);