Updated API from documentation release

Author: ct-sdks[bot]

api-specs/api/types/recurring-order/RecurringOrder.raml

@@ -30,6 +30,8 @@ properties:
     type: OrderReference
     description: |
       [Reference](ctp:api:type:Reference) to the original [Order](ctp:api:type:Order) that generated this RecurringOrder.
+      This field is automatically populated when the RecurringOrder is created via the [Create Order from Cart](/../api/projects/orders#create-order-from-cart) endpoint and the Cart contains Line Items with defined `recurrenceInfo`.
+      When the RecurringOrder is created directly via the [Create RecurringOrder](/../api/projects/recurring-orders#create-recurringorder) endpoint, this field remains empty.
   startsAt:
     type: datetime
     description: |