Update 'Class_Diagram'

Class_Diagram.md

@@ -217,6 +217,8 @@ package Model <<Frame>> #bada55 {
       +StartNewGame(string, IManager<Player>, [*] Die): Game
     }
     
+    class GameManager $done
+    
     class Game $done {
       /+Name: string
       /+Dice: [*] Die
@@ -228,7 +230,7 @@ package Model <<Frame>> #bada55 {
     
     class Turn $done {
       +/When: DateTime
-      -Turn()
+      -Ctor()
       {static} +CreateWithSpecifiedTime(DateTime, Player, Dictionary<Die, Face>): Turn
       {static} +CreateWithDefaultTime(Player, Dictionary<Die, Face>): Turn
     }
@@ -246,6 +248,9 @@ MasterOfCeremonies --> IManager : "T <-- <KeyValuePair<string, [*] Die>>"
 MasterOfCeremonies --> IManager : "T <-- <Player>"
 MasterOfCeremonies --> IManager : "T <-- <Game>"
 
+GameManager ..|> "T <-- <Game>" IManager
+GameManager --> "[*] -games" Game
+
 Game -down-> "[*]" Die
 Game -down-> "[*] /+Turns" Turn
 Game -right-> IManager : "T <-- <Game>"