add descriptions to table

Author: hunterowens

provider/README.md

@@ -295,12 +295,14 @@ When multiple query parameters are specified, they should all apply to the retur
 | | | `user_drop_off` | User ends reservation |
 | | | `rebalance_drop_off` | Device moved for rebalancing |
 | | | `maintenance_drop_off` | Device introduced into service after being removed for maintenance |
+| | | `agency_drop_off` | The administrative agency (ie, DOT) drops a device into the PROW using an admin code or similar | 
 | `reserved` | A customer reserves a device (even if trip has not started yet) | `user_pick_up` | Customer reserves device |
 | `unavailable` | A device is on the street but becomes unavailable for customer use | `maintenance` | A device is no longer available due to equipment issues |
 | | | `low_battery` | A device is no longer available due to insufficient battery |
 | `removed` | A device is removed from the street and unavailable for customer use | `service_end` | Device removed from street because service has ended for the day (if program does not operate 24/7) |
 | | | `rebalance_pick_up` | Device removed from street and will be placed at another location to rebalance service |
 | | | `maintenance_pick_up` | Device removed from street so it can be worked on |
+| | | `agency_pick_up` | The administrative agency (ie, DOT) removes a device using an admin code or similar |
 
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