Change parking_spot to waypoint_name

Signed-off-by: Xiyu Oh <xiyu@openrobotics.org>

rmf_demos/config/office/tinyRobot_config.yaml

@@ -38,7 +38,7 @@ rmf_fleet:
         charger: "tinyRobot1_charger"
         finishing_request: # Optionally define any robot-specific finishing request. Overrides the fleet-wide setting.
           type: "park" # [park, charge, nothing]
-          parking_spot: "supplies" # This is a required field if the finishing_request type is "park"
+          waypoint_name: "supplies" # This is a required field if the finishing_request type is "park"
         responsive_wait: False # Should responsive wait be on/off for this specific robot? Overrides the fleet-wide setting.
     tinyRobot2:
         charger: "tinyRobot2_charger"