update

Author: george-guirguis

articles/event-grid/overview.md

@@ -82,7 +82,7 @@ Event Grid supports the following use cases:
 
 Event Grid enables your clients to communicate on [custom MQTT topic names](https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#_Toc3901107) using a publish-subscribe messaging model. Event Grid supports clients that publish and subscribe to messages over MQTT v3.1.1, MQTT v3.1.1 over WebSockets, MQTT v5, and MQTT v5 over WebSockets. Your MQTT client can connect to Event Grid and publish/subscribe to messages, while Event Grid authenticates your clients, authorizes publish/subscribe requests, and forward messages to interested clients. Event Grid allows you to send MQTT messages to the cloud for data analysis, storage, and visualizations, among other use cases.
 
-:::image type="content" source="media/overview/mqtt-messaging-highres.png" alt-text="High-level diagram of Event Grid that shows bidirectional MQTT communication with publisher and subscriber clients." border="false":::
+:::image type="content" source="media/overview/mqtt-messaging-high-res.png" alt-text="High-level diagram of Event Grid that shows bidirectional MQTT communication with publisher and subscriber clients." border="false":::
 
 Event Grid’s MQTT support enables you to accomplish the following scenarios.