Update intro-net-docker.md (dotnet#4053)

Author: Rick Anderson

docs/core/docker/intro-net-docker.md

@@ -100,7 +100,7 @@ This repo contain samples that demonstrate various .NET Framework Docker configu
 
 **.NET Framework 4.7**
 
-[The [dotnet-framework:4.7 sample](https://github.com/Microsoft/dotnet-framework-docker-samples/tree/master/dotnetapp-4.7) demonstrates basic "hello world" usage of the [.NET Framework 4.7](../../framework/whats-new/index.md#v47). It shows you how you can build and deploy the app relying on the [.NET Framework 4.7 docker image](https://github.com/Microsoft/dotnet-framework-docker/blob/master/4.7/Dockerfile).
+The [dotnet-framework:4.7 sample](https://github.com/Microsoft/dotnet-framework-docker-samples/tree/master/dotnetapp-4.7) demonstrates basic "hello world" usage of the [.NET Framework 4.7](../../framework/whats-new/index.md#v47). It shows you how you can build and deploy the app relying on the [.NET Framework 4.7 docker image](https://github.com/Microsoft/dotnet-framework-docker/blob/master/4.7/Dockerfile).
 
 **.NET Framework 4.6.2**
 
@@ -201,4 +201,4 @@ Now that you have learned about the Docker platform and different Docker images,
 
 * [Learn Docker Basics with .NET Core](docker-basics-dotnet-core.md)
 * [Building .NET Core Docker Images](building-net-docker-images.md)
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