Changed order ship event (#492)

Author: zlik

app/code/Meta/Sales/etc/config.xml

@@ -8,7 +8,7 @@
                 <auto_subscribe_to_newsletter>1</auto_subscribe_to_newsletter>
                 <default_fulfillment_location>1</default_fulfillment_location>
                 <!-- Supported events: sales_order_shipment_save_after, sales_order_shipment_track_save_after -->
-                <order_ship_event>sales_order_shipment_save_after</order_ship_event>
+                <order_ship_event>sales_order_shipment_track_save_after</order_ship_event>
             </orders_sync>
         </facebook>
         <payment>