Minor tweaks

Author: Luke Hoban

labs/azure/csharp/01-iac/02-configuring-azure.md

@@ -7,11 +7,9 @@ Now that you have a basic project, let's configure Azure support for it.
 Run the following command to install the Azure package:
 
 ```bash
-dotnet add package Pulumi.Azure --version 2.2.0-preview
+dotnet add package Pulumi.Azure
 ```
 
-*Note: Pulumi .NET SDK is still in preview, so we need to specify the NuGet package version explicitly.*
-
 The package will be added to `csproj` and the binaries will be restored.
 
 ## Step 2 — Use the Azure Package

labs/azure/csharp/03-aci/README.md

@@ -127,7 +127,7 @@ var registry = new Registry("registry", new RegistryArgs
 You can build and publish Docker images from within your Pulumi program. For that, install an additional NuGet package:
 
 ```bash
-dotnet add package Pulumi.Docker --version 1.2.0-preview
+dotnet add package Pulumi.Docker
 ```
 
 Now, let's add a few new files. First, `app/site/index.html`:
@@ -182,7 +182,7 @@ and add credentials for the container group to be able to access the registry:
 ...
     ImageRegistryCredentials =
     {
-        new GroupImageRegistryCredentialsArgs
+        new Pulumi.Azure.ContainerService.Inputs.GroupImageRegistryCredentialArgs
         {
             Server = registry.LoginServer,
             Username = registry.AdminUsername,