Fix include metadata

Author: kgremban

includes/iot-hub-include-x509-ca-signed-support-note.md

@@ -1,16 +1,14 @@
 ---
- title: include file
- description: include file
- services: iot-hub
- author: kgremban
- ms.service: azure-iot-hub
- ms.topic: include
- ms.date: 01/14/2025
- ms.author: kgremban
- ms.custom: include file
+services: iot-hub
+author: kgremban
+ms.service: azure-iot-hub
+ms.topic: include
+ms.date: 01/14/2025
+ms.author: kgremban
 ---
+
 > [!IMPORTANT]
-> The following functionality for devices that use X.509 certificate authority (CA) authentication is not yet generally available, and [preview mode must be enabled](../articles/iot-hub/iot-hub-preview-mode.md):
+> The following functionality for devices that use X.509 certificate authority (CA) authentication isn't yet generally available, and [preview mode must be enabled](../articles/iot-hub/iot-hub-preview-mode.md):
 >
 > - HTTPS, MQTT over WebSockets, and AMQP over WebSockets protocols.
 > - File uploads (all protocols).