Consuming a class library with .NET Core in Visual Studio 2017

[mairaw]

Some suggestions for the topic based on my observation and some LiveFyre comments: https://docs.microsoft.com/en-us/dotnet/core/tutorials/consuming-library-with-visual-studio

• Console.WindowHeight doesn't work on Linux and macOS. It would be good to have an example that is cross-platform.
• The title should probably be changed to .NET Standard given we change the library to be .NET Standard and not .NET Core (some customers were confused with that)
• When the condition for the Console.Clear() is met inside the do-while loop, the result of the last string you entered is not displayed.

/cc @rpetrusha