Update 201 response

Author: avatarneil

agency/README.md

@@ -197,7 +197,10 @@ Body Params:
 
 201 Success Response:
 
-_No content returned on success._
+| Field     | Type                           | Field Description                                                                                       |
+| --------- | ------------------------------ | ------------------------------------------------------------------------------------------------------- |
+| `result`  | String                         | Responds with number of successfully written telemetry data points and total number of provided points. |
+| `failures | [Telemetry](#telemetry-data)[] | Array of failed telemetry for one or more vehicles.                                                     |
 
 400 Failure Response: