Added comments for proxy example.

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

 package com.iluwatar;
 
+/**
+ * 
+ * Proxy (WizardTowerProxy) controls access to the
+ * actual object (WizardTower).
+ *
+ */
 public class App 
 {
     public static void main( String[] args )

proxy/src/main/java/com/iluwatar/WizardTower.java

 package com.iluwatar;
 
+/**
+ * 
+ * The object to be proxyed.
+ *
+ */
 public class WizardTower {
 
 	public void enter(Wizard wizard) {

proxy/src/main/java/com/iluwatar/WizardTowerProxy.java

 package com.iluwatar;
 
+/**
+ * 
+ * The proxy controlling access to WizardTower.
+ *
+ */
 public class WizardTowerProxy extends WizardTower {
 
 	private static final int NUM_WIZARDS_ALLOWED = 3;
@@ -15,5 +20,4 @@ public class WizardTowerProxy extends WizardTower {
 			System.out.println(wizard + " is not allowed to enter!");
 		}
 	}
-	
 }