Fix ToC

Author: barnstee

articles/iot/TOC.yml

@@ -35,18 +35,18 @@ items:
         href: iot-phone-app-how-to.md
       - name: Use IoT Explorer
         href: howto-use-iot-explorer.md
-      - name: Use IoT Plug and Play 
+      - name: Use IoT Plug and Play
         items:
         - name: Manage digital twins
           href: howto-manage-digital-twin.md
         - name: Convert a device to IoT Plug and Play
           href: howto-convert-to-pnp.md
-      - name: Connect an on-premises SAP system to Azure   
-        href: howto-connect-on-premises-sap-to-azure.md   
+      - name: Connect an on-premises SAP system to Azure
+        href: howto-connect-on-premises-sap-to-azure.md
 
   - name: Tutorials
     items:
-    - name: Send telemetry to IoT Hub 
+    - name: Send telemetry to IoT Hub
       href: tutorial-send-telemetry-iot-hub.md
     - name: Build a device solution with IoT Hub
       items:
@@ -72,13 +72,13 @@ items:
       href: tutorial-migrate-device-to-module.md
     - name: Use MQTT to connect a Mobile device
       href: tutorial-use-mqtt.md
-    - name: Implement a condition monitoring solution
-      href: tutorial-iot-industrial-solution-architecture.md 
+    - name: Implement the Industrial IoT reference solution
+      href: tutorial-iot-industrial-solution-architecture.md
 
   - name: Concepts
     items:
       - name: Security architecture
-        href: iot-security-architecture.md    
+        href: iot-security-architecture.md
       - name: IoT device development
         items:
         - name: What is IoT device development
@@ -88,7 +88,7 @@ items:
         - name: C SDK and Embedded C SDK usage scenarios
           href: concepts-using-c-sdk-and-embedded-c-sdk.md
         - name: Manage device reconnections
-          href: concepts-manage-device-reconnections.md 
+          href: concepts-manage-device-reconnections.md
         - name: IoT device selection
           href: concepts-iot-device-selection.md
         - name: Guide for Eclipse ThreadX security practices
@@ -108,7 +108,7 @@ items:
         - name: Service developer guide
           href: concepts-developer-guide-service.md
         - name: Digital twins
-          href: concepts-digital-twin.md   
+          href: concepts-digital-twin.md
         - name: Device models
           items:
           - name: Modeling guide
@@ -118,22 +118,22 @@ items:
           - name: Model parser
             href: concepts-model-parser.md
       - name: MQTT support
-        items: 
+        items:
         - name: Use MQTT with IoT Hub
           href: iot-mqtt-connect-to-iot-hub.md
         - name: Use MQTT with DPS
           href: iot-mqtt-connect-to-iot-dps.md
         - name: MQTT 5 support (preview)
-          items: 
+          items:
           - name: MQTT 5 overview
             href: iot-mqtt-5-preview.md
           - name: MQTT 5 API reference
-            href: iot-mqtt-5-preview-reference.md   
+            href: iot-mqtt-5-preview-reference.md
 
   - name: Resources
     items:
     - name: Support and help options
-      href: iot-support-help.md  
+      href: iot-support-help.md
     - name: IoT glossary
       href: iot-glossary.md
     - name: Azure IoT services