Update articles/iot-edge/how-to-connect-downstream-iot-edge-device.md

Co-authored-by: John Lian <[email protected]>

Author: PatAltimore

articles/iot-edge/how-to-connect-downstream-iot-edge-device.md

@@ -451,7 +451,7 @@ You should already have IoT Edge installed on your device. If not, follow the st
     >[!TIP]
     >The IoT Edge check tool uses a container to perform some of the diagnostics check. If you want to use this tool on downstream IoT Edge devices, make sure they can access `mcr.microsoft.com/azureiotedge-diagnostics:latest`, or have the container image in your private container registry.
 
-### Verify child configuration
+### Verify connectivity from child to parent
 
 01. Verify the TLS/SSL connection from the child to the parent by running the following `openssl` command on the child device. Replace `<parent hostname>` with the FQDN or IP address of the parent.