Osztály-diagram.md

@@ -684,7 +684,11 @@ interface ICommandResult {
 + IsSuccess() : bool
 }
 
-class BiCommandResult <<sealed>> implements ICommandResult{
+abstract DiscreteCommandResult implements ICommandResult {
++ ToString(): string {override}
+}
+
+class BiCommandResult <<sealed>> extends DiscreteCommandResult {
 + Success : BiCommandResult
 + Failure : BiCommandResult
 }