toc and index updates

Author: timlt

articles/iot-develop/TOC.yml

@@ -21,6 +21,8 @@
       items:
       - name: Microchip ATSAME54-XPro
         href: quickstart-devkit-microchip-atsame54-xpro-iot-hub.md
+      - name: STMicroelectronics L4S5I-IOT01A
+        href: quickstart-devkit-stm-b-l4s5i-iot-hub.md
       - name: STMicroelectronics L475E-IOT01A
         href: quickstart-devkit-stm-b-l475e-iot-hub.md
       - name: MXCHIP AZ3166

articles/iot-develop/index.yml

@@ -39,10 +39,10 @@ landingContent:
       links:
         - text: Connect a Microchip ATSAME54-XPro to IoT Hub
           url: quickstart-devkit-microchip-atsame54-xpro-iot-hub.md
+        - text: Connect an STMicroelectronics L4S5I-IOT01A to IoT Hub
+          url: quickstart-devkit-stm-b-l4s5i-iot-hub.md
         - text: Connect an STMicroelectronics B-L475E-IOT01A to IoT Hub
           url: quickstart-devkit-stm-b-l475e-iot-hub.md
-        - text: Connect an STMicroelectronics L4S5I-IOT01A to IoT Central
-          url: quickstart-devkit-stm-b-l4s5i.md
   - title: Build device solutions
     linkLists:
     - linkListType: tutorial