Fix urls (Azure#39252)

Author: xiangyan99

sdk/deviceupdate/azure-iot-deviceupdate/README.md

@@ -5,7 +5,7 @@ The library provides access to the Device Update for IoT Hub service that enable
 [Source code](https://github.com/Azure/azure-sdk-for-python/tree/main/sdk/deviceupdate/azure-iot-deviceupdate)
 | [Package (PyPI)](https://aka.ms/azsdk/python/deviceupdate-pypi)
 | [Package (Conda)](https://anaconda.org/microsoft/azure-iot-deviceupdate)
-| [Product documentation](https://docs.microsoft.com/azure/iot-hub-device-update/understand-device-update)
+| [Product documentation](https://learn.microsoft.com/azure/iot-hub-device-update/understand-device-update)
 
 ## _Disclaimer_
 

sdk/deviceupdate/azure-iot-deviceupdate/samples/DeleteUpdate/Readme.md

@@ -5,7 +5,7 @@ In this sample we will delete an update from Device Update for IoT Hub using Pyt
 ## Prerequisites
 
 * Python 3.6 or later is required to use this package
-* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://docs.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
+* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://learn.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
 account and instance to use this package.
 
 Set the following environment variables:

sdk/deviceupdate/azure-iot-deviceupdate/samples/DeployUpdate/Readme.md

@@ -5,7 +5,7 @@ In this sample we will deploy an update to a group of devices in Device Update f
 ## Prerequisites
 
 * Python 3.6 or later is required to use this package
-* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://docs.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
+* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://learn.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
 account and instance to use this package.
 
 Set the following environment variables:

sdk/deviceupdate/azure-iot-deviceupdate/samples/GetDevice/Readme.md

@@ -5,7 +5,7 @@ In this sample we will retrieve some basic device management information from De
 ## Prerequisites
 
 * Python 3.6 or later is required to use this package
-* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://docs.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
+* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://learn.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
 account and instance to use this package.
 
 Set the following environment variables:

sdk/deviceupdate/azure-iot-deviceupdate/samples/GetUpdate/Readme.md

@@ -5,7 +5,7 @@ In this sample we will retrieve update and file metadata from Device Update for
 ## Prerequisites
 
 * Python 3.6 or later is required to use this package
-* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://docs.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
+* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://learn.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
 account and instance to use this package.
 
 Set the following environment variables:

sdk/deviceupdate/azure-iot-deviceupdate/samples/ImportUpdate/Readme.md

@@ -5,7 +5,7 @@ In this sample we will import update to Device Update for IoT Hub using Python S
 ## Prerequisites
 
 * Python 3.6 or later is required to use this package
-* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://docs.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
+* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://learn.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
 account and instance to use this package.
 
 Set the following environment variables:
@@ -30,7 +30,7 @@ The sample will import update to Device Update for IoT Hub.
 
 Let's assume you have device update (provided by device builder) and you want to import it into your Device Update for IoT Hub instance. 
 For device update to be importable you need not only the actual payload file but also the corresponding import manifest document. 
-See [Import-Concepts](https://docs.microsoft.com/azure/iot-hub-device-update/import-concepts) for details about import manifest.
+See [Import-Concepts](https://learn.microsoft.com/azure/iot-hub-device-update/import-concepts) for details about import manifest.
 
 ``` python
 endpoint = os.environ["DEVICEUPDATE_ENDPOINT"]

sdk/deviceupdate/azure-iot-deviceupdate/samples/ListUpdates/Readme.md

@@ -5,7 +5,7 @@ In this sample we will enumerate updates imported to Device Update for IoT Hub u
 ## Prerequisites
 
 * Python 3.6 or later is required to use this package
-* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://docs.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
+* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://learn.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
 account and instance to use this package.
 
 Set the following environment variables:

sdk/deviceupdate/azure-iot-deviceupdate/samples/Readme.md

@@ -16,7 +16,7 @@ These are code samples that show common scenario operations with the Device Upda
 ## Prerequisites
 
 * Python 3.6 or later is required to use this package
-* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://docs.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
+* You need an [Azure subscription][https://azure.microsoft.com/free/], and a [Device Update for IoT Hub][https://learn.microsoft.com/azure/iot-hub-device-update/understand-device-update] 
 account and instance to use this package.
 
 ## Setup