Add trip stop event to car share

Signed-off-by: Michael Schnuerle <1285077+schnuerle@users.noreply.github.com>

Author: schnuerle

modes/car-share.md

@@ -60,7 +60,7 @@ The `journey_attributes` object **may** have the following key value pairs:
 
 ### Trip ID Requirements
 
-Events require a valid `trip_id` in events where `event_types` contains `reservation_start`, `reservation_stop`, `trip_start`, `trip_resume`, `trip_end`,`trip_cancel`, `customer_cancellation`, `provider_cancellation`, or `driver_cancellation`. 
+Events require a valid `trip_id` in events where `event_types` contains `reservation_start`, `reservation_stop`, `trip_start`, `trip_resume`, `trip_stop`,`trip_end`,`trip_cancel`, `customer_cancellation`, `provider_cancellation`, or `driver_cancellation`. 
 
 Additionally, `trip_id` is required if `event_types` contains a `trip_enter_jurisdiction` or `trip_leave_jurisdiction` event pertaining to a trip.