Fix content table in ADU sample documentation

Author: ewertons

examples/Azure_IoT_Adu_ESP32/readme.md

@@ -23,13 +23,13 @@ products:
 - [Introduction](#introduction)
   - [What is Covered](#what-is-covered)
 - [Prerequisites](#prerequisites)
-- [Setup Instructions](#setup-instructions)
+- [Add Azure IoT Hub Device to an ADU Deployment Group](#add-azure-iot-hub-device-to-an-adu-deployment-group)
+- [Device Setup Instructions](#device-setup-instructions)
 - [New Image Instructions](#new-image-instructions)
   - [Generate the ADU Update Manifest](#generate-the-adu-update-manifest)
   - [Import the Update Manifest](#import-the-update-manifest)
-  - [Tag Your Device](#tag-your-device)
-- [Upload Base Image Instructions](#upload-base-image-instructions)
   - [Deploy Update](#deploy-update)
+  - [Monitor the Update Process](#monitor-the-update-process)
 - [Certificates - Important to know](#certificates---important-to-know)
   - [Additional Information](#additional-information)
 - [Troubleshooting](#troubleshooting)