added exception for keyboard interrupt

src/pyjack/main.py

@@ -8,6 +8,10 @@ if __name__ == "__main__":
     print("do you wanna play a round??")
 
     game = Game()
-    while True:
+    try:
-        # os.system("clear")
+        while True:
-        game.play_round()
+            # os.system("clear")
+            game.play_round()
+
+    except KeyboardInterrupt:
+        print("End Program")