Fix prereqs

Author: dominicbetts

articles/iot-operations/process-data/howto-configure-destination-grpc.md

@@ -26,7 +26,7 @@ When you send data to a gRPC endpoint from a destination stage:
 
 ## Prerequisites
 
-To configure and use an aggregate pipeline stage, you need:
+To configure and use a destination pipeline stage, you need:
 
 - A deployed instance of Azure IoT Data Processor (preview).
 - A [gRPC](https://grpc.io/docs/what-is-grpc/) server that's accessible from the Data Processor instance.

articles/iot-operations/process-data/howto-configure-destination-mq-broker.md

@@ -21,7 +21,7 @@ Use the _MQ_ destination to publish processed messages to an MQTT broker, such a
 
 ## Prerequisites
 
-To configure and use an Azure Data Explorer destination pipeline stage, you need a deployed instance of Azure IoT Data Processor (preview).
+To configure and use a destination pipeline stage, you need a deployed instance of Azure IoT Data Processor (preview).
 
 ## Configure the destination stage