returned the call that adds marks to players

GameMap.py

@@ -21,6 +21,7 @@ class GameMap:
         if (x <= self.max_size_x and y <= self.max_size_y) and (x >= 0 and y >= 0):
             if (x, y) not in self.data:
                 self.data[(x,y)] = player
+                player.add_mark((x,y))
             else:
                 errorMessage = "The mark is already busy by the Player" + self.data[(x, y)].get_name()
                 raise KeyError(errorMessage)