Update Elevation Readme For Deprecation (Azure#34287)

* update readme for deprecation

Author: khmic5

sdk/maps/azure-maps-elevation/README.md

@@ -1,11 +1,15 @@
-# Azure Maps SDK Elevation client library for Java
+# Azure Maps SDK Elevation client library for Java (Deprecated)
 
 Azure Maps SDK Elevation client library for Java.
 
 This package contains the Azure Maps SDK Elevation client library which contains Azure Maps Elevation APIs. For documentation on how to use this package, please see [Azure Maps Elevation REST APIs](https://docs.microsoft.com/rest/api/maps/elevation).
 
 [Source code][source] | [API reference documentation][docs] | [REST API documentation][rest_docs] | [Product documentation][product_docs] | [Samples][samples]
 
+## Important
+
+Please note, this package has been deprecated and will no longer be maintained after 5 May 2023. We encourage you to upgrade to the latest version to continue receiving updates. All other Azure Maps APIs, Services and TilesetIDs are unaffected by this retirement. Refer to the migration guide [Elevation Services Retirement] for guidance on upgrading. Refer to our deprecation policy (https://aka.ms/azsdk/support-policies) for more details.
+
 ## Documentation
 
 Various documentation is available to help you get started
@@ -21,10 +25,10 @@ Various documentation is available to help you get started
 
 ### Adding the package to your product
 
-[//]: # ({x-version-update-start;com.azure-maps-elevation;current})
+[//]: # ({x-version-update-start;com.azure:azure-maps-elevation;current})
 ```xml
 <dependency>
-    <groupId>com.azure.resourcemanager</groupId>
+    <groupId>com.azure</groupId>
     <artifactId>azure-maps-elevation</artifactId>
     <version>1.0.0-beta.1</version>
 </dependency>
@@ -121,5 +125,6 @@ For details on contributing to this repository, see the [contributing guide](htt
 [azure_core_http_netty]: https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/core/azure-core-http-netty
 [authenticate]: https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/resourcemanager/docs/AUTH.md
 [design]: https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/resourcemanager/docs/DESIGN.md
+[Elevation Services Retirement]: https://azure.microsoft.com/updates/azure-maps-elevation-apis-and-render-v2-dem-tiles-will-be-retired-on-5-may-2023/
 
 ![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-java%2Fsdk%2Fmaps%2Fazure-maps-elevation%2FREADME.png)