[AzureMonitor] add links to docs in the Readme (Azure#45017)

* add links to docs in the Readme

* pr feedback

sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/README.md

@@ -45,6 +45,14 @@ The Azure Monitor Distro is a distribution of the .NET OpenTelemetry SDK with in
 
 * [Azure Monitor Exporter](https://www.nuget.org/packages/Azure.Monitor.OpenTelemetry.Exporter/) allows sending traces, metrics, and logs data to Azure Monitor.
 
+### Migrating from Application Insights SDK?
+
+If you are currently using the Application Insights SDK and want to migrate to OpenTelemetry, please follow our [migration guide](https://learn.microsoft.com/azure/azure-monitor/app/opentelemetry-dotnet-migrate?tabs=aspnetcore).
+
+### Already using OpenTelemetry?
+
+If you are currently using OpenTelemetry and want to send telemetry data to Azure Monitor, please follow our [getting started guide](https://learn.microsoft.com/azure/azure-monitor/app/opentelemetry-enable?tabs=aspnetcore).
+
 ### Install the package
 
 #### Latest Version: [![Nuget](https://img.shields.io/nuget/vpre/Azure.Monitor.OpenTelemetry.AspNetCore.svg)](https://www.nuget.org/packages/Azure.Monitor.OpenTelemetry.AspNetCore/)

sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/README.md

@@ -1,7 +1,5 @@
 # Azure Monitor Exporter client library for .NET
 
-
-
 The [OpenTelemetry .NET](https://github.com/open-telemetry/opentelemetry-dotnet) exporters which send [telemetry data](https://docs.microsoft.com/azure/azure-monitor/app/data-model) to [Azure Monitor](https://docs.microsoft.com/azure/azure-monitor/app/app-insights-overview) following the [OpenTelemetry Specification](https://github.com/open-telemetry/opentelemetry-specification).
 
 ## Getting started
@@ -11,6 +9,14 @@ The [OpenTelemetry .NET](https://github.com/open-telemetry/opentelemetry-dotnet)
 - **Azure Subscription:**  To use Azure services, including Azure Monitor Exporter for [OpenTelemetry .NET](https://github.com/open-telemetry/opentelemetry-dotnet), you'll need a subscription.  If you do not have an existing Azure account, you may sign up for a [free trial](https://azure.microsoft.com/free/dotnet/) or use your [Visual Studio Subscription](https://visualstudio.microsoft.com/subscriptions/) benefits when you [create an account](https://azure.microsoft.com/account).
 - **Azure Application Insights Connection String:** To send telemetry data to the monitoring service you'll need connection string from Azure Application Insights. If you are not familiar with creating Azure resources, you may wish to follow the step-by-step guide for [Create an Application Insights resource](https://docs.microsoft.com/azure/azure-monitor/app/create-new-resource) and [copy the connection string](https://docs.microsoft.com/azure/azure-monitor/app/sdk-connection-string?tabs=net#find-your-connection-string).
 
+### Migrating from Application Insights SDK
+
+If you are currently using the Application Insights SDK and want to migrate to OpenTelemetry, please follow our [migration guide](https://learn.microsoft.com/azure/azure-monitor/app/opentelemetry-dotnet-migrate?tabs=console). 
+
+### Already using OpenTelemetry?
+
+If you are currently using OpenTelemetry and want to send telemetry data to Azure Monitor, please follow our [getting started guide](https://learn.microsoft.com/azure/azure-monitor/app/opentelemetry-enable?tabs=net).
+
 ### Install the package
 
 #### Latest Version: [![Nuget](https://img.shields.io/nuget/vpre/Azure.Monitor.OpenTelemetry.Exporter.svg)](https://www.nuget.org/packages/Azure.Monitor.OpenTelemetry.Exporter/)