Fix validation issues

Author: jlian

articles/iot-edge/how-to-configure-proxy-support.md

@@ -385,7 +385,7 @@ To use a proxy that performs traffic inspection, you must use either shared acce
 
 ## Fully qualified domain names (FQDNs) of destinations that IoT Edge communicates with
 
-If your proxy has a firewall that requires you to allow-list all FQDNs for internet connectivity, review the list from [Allow connections from IoT Edge devices](production-checklist.md##allow-connections-from-iot-edge-devices) to determine which FQDNs to add.
+If your proxy has a firewall that requires you to allow-list all FQDNs for internet connectivity, review the list from [Allow connections from IoT Edge devices](production-checklist.md#allow-connections-from-iot-edge-devices) to determine which FQDNs to add.
 
 ## Next steps
 

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

@@ -160,13 +160,6 @@ Make sure that the user **iotedge** has read permissions for the directory holdi
 1. *If this device is a child device*, find the **Parent hostname** section. Uncomment and update the `parent_hostname` parameter to be the FQDN or IP address of the parent device, matching whatever was provided as the hostname in the parent device's config file.
 
    ```toml
-  # ==============================================================================
-  # Parent hostname
-  # ==============================================================================
-  #
-  # If this is a Nested Edge device, uncomment the next line to set the
-  # parent hostname of this device.
-  #
   parent_hostname = "my-parent-device"
    ```