update links to point at main (#22654)

Author: m-nash

sdk/resourcemanager/Azure.ResourceManager.Core/README.md

@@ -23,7 +23,7 @@ Set up a way to authenticate to Azure with Azure Identity.
 Some options are:
 - Through the [Azure CLI Login](https://docs.microsoft.com/cli/azure/authenticate-azure-cli).
 - Via [Visual Studio](https://docs.microsoft.com/dotnet/api/overview/azure/identity-readme?view=azure-dotnet#authenticating-via-visual-studio).
-- Setting [Environment Variables](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/docs/AuthUsingEnvironmentVariables.md).
+- Setting [Environment Variables](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/docs/AuthUsingEnvironmentVariables.md).
 
 More information and different authentication approaches using Azure Identity can be found in [this document](https://docs.microsoft.com/dotnet/api/overview/azure/identity-readme?view=azure-dotnet).
 
@@ -226,7 +226,7 @@ await foreach(VirtualMachine vm in vmContainer.ListAsync())
 }
  ```
 
-For more detailed examples, take a look at [samples](https://github.com/Azure/azure-sdk-for-net/tree/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/samples) we have available.
+For more detailed examples, take a look at [samples](https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/resourcemanager/Azure.ResourceManager.Core/samples) we have available.
 
 ## Troubleshooting
 
@@ -238,8 +238,8 @@ For more detailed examples, take a look at [samples](https://github.com/Azure/az
 ## Next steps
 ### More sample code
 
-- [Managing Resource Groups](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample2_ManagingResourceGroups.md)
-- [Creating a Virtual Network](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample3_CreatingAVirtualNetwork.md)
+- [Managing Resource Groups](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample2_ManagingResourceGroups.md)
+- [Creating a Virtual Network](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample3_CreatingAVirtualNetwork.md)
 - [.NET Management Library Code Samples](https://docs.microsoft.com/samples/browse/?branch=master&languages=csharp&term=managing%20using%20Azure%20.NET%20SDK)
 
 ### Additional Documentation
@@ -248,7 +248,7 @@ For more information on Azure SDK, please refer to [this website](https://azure.
 ## Contributing
 
 For details on contributing to this repository, see the [contributing
-guide](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/docs/CONTRIBUTING.md).
+guide](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/docs/CONTRIBUTING.md).
 
 This project welcomes contributions and suggestions. Most contributions
 require you to agree to a Contributor License Agreement (CLA) declaring

sdk/resourcemanager/Azure.ResourceManager.Core/samples/README.md

@@ -11,7 +11,7 @@ description: Samples for the Azure.ResourceManager.Core client library
 
 # Azure.ResourceManager.Core Samples
 
-- [Hello World - Getting a subscription](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample1_HelloWorld.md)
-- [Hello World - Getting a subscription async](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample1_HelloWorldAsync.md)
-- [Managing Resource Groups](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample2_ManagingResourceGroups.md)
-- [Creating a virtual network](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample3_CreatingAVirtualNetwork.md)
+- [Hello World - Getting a subscription](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample1_HelloWorld.md)
+- [Hello World - Getting a subscription async](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample1_HelloWorldAsync.md)
+- [Managing Resource Groups](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample2_ManagingResourceGroups.md)
+- [Creating a virtual network](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample3_CreatingAVirtualNetwork.md)

sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample1_HelloWorld.md

@@ -1,6 +1,6 @@
 # Example: Getting a subscription
 
->Note: Before getting started with the samples, make sure to go trough the [prerequisites](https://github.com/Azure/azure-sdk-for-net/tree/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core#prerequisites).
+>Note: Before getting started with the samples, make sure to go trough the [prerequisites](https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/resourcemanager/Azure.ResourceManager.Core#prerequisites).
 
 Namespaces for this example:
 ```C# Snippet:Hello_World_Namespaces
@@ -33,4 +33,4 @@ ResourceGroupContainer rgContainer = subscription.GetResourceGroups();
 ```
 
 ## Next stepts
-Take a look at the [Managing Resource Groups](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample2_ManagingResourceGroups.md) samples.
+Take a look at the [Managing Resource Groups](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample2_ManagingResourceGroups.md) samples.

sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample1_HelloWorldAsync.md

@@ -1,6 +1,6 @@
 # Example: Getting a subscription
 
->Note: Before getting started with the samples, go through the [prerequisites](https://github.com/Azure/azure-sdk-for-net/tree/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core#prerequisites).
+>Note: Before getting started with the samples, go through the [prerequisites](https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/resourcemanager/Azure.ResourceManager.Core#prerequisites).
 
 Namespaces for this example:
 ```C# Snippet:Hello_World_Async_Namespaces
@@ -36,4 +36,4 @@ ResourceGroupContainer rgContainer = subscription.GetResourceGroups();
 ```
 
 ## Next stepts
-Take a look at the [Managing Resource Groups](https://github.com/Azure/azure-sdk-for-net/blob/feature/mgmt-track2/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample2_ManagingResourceGroups.md) samples.
+Take a look at the [Managing Resource Groups](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/resourcemanager/Azure.ResourceManager.Core/samples/Sample2_ManagingResourceGroups.md) samples.