Added TODO: Depending on a static method violates the Dependency Inve…

…rsion Principle and Open-Closed Principle.

TDDMicroExercises.YoursSolutions/Java-benwu/TurnTicketDispenser/src/main/java/tddmicroexercises/turnticketdispenser/TicketDispenser.java

@@ -4,6 +4,7 @@ public class TicketDispenser
 {
     public TurnTicket getTurnTicket()
     {
+        // TODO: Depending on a static method violates the Dependency Inversion Principle and Open-Closed Principle.
         int newTurnNumber = TurnNumberSequence.getNextTurnNumber();
         TurnTicket newTurnTicket = new TurnTicket(newTurnNumber);