Angzhang/flattensample (#453)

* flatten sample directory

* flatten directory structure

* update readme

* update commands

Author: angelazhangmsft

Samples/Net5ProjectionSample/ConsoleAppSample/ConsoleAppSample.sln renamed to Samples/Net5ProjectionSample/ConsoleAppSample.sln

@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 16
 VisualStudioVersion = 16.0.30509.190
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConsoleAppSample", "ProjectionSampleConsoleApp\ConsoleAppSample.csproj", "{9623756E-90CE-449C-8BD8-36A2F8419DBF}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConsoleAppSample", "ConsoleAppSample\ConsoleAppSample.csproj", "{9623756E-90CE-449C-8BD8-36A2F8419DBF}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution

Samples/Net5ProjectionSample/ConsoleAppSample/ProjectionSampleConsoleApp/ConsoleAppSample.csproj renamed to Samples/Net5ProjectionSample/ConsoleAppSample/ConsoleAppSample.csproj

@@ -14,14 +14,14 @@ This sample demonstrates how to invoke C#/WinRT to build a .NET5 projection for
 
 Using Visual Studio:
 
-1. Build the *CppWinRTProjectionSample* solution first. This generates the projection and interop assembly using cswinrt, and creates *SimpleMathComponent.nupkg* which can be referenced in consuming apps. If you run into errors restoring NuGet packages, look at the docs on [NuGet restore options](https://docs.microsoft.com/nuget/consume-packages/package-restore). You may need to configure your NuGet package manager settings to allow for package restores on build.
+1. Build the *CppWinRTComponentProjectionSample* solution first. This generates the projection and interop assembly using cswinrt, and creates *SimpleMathComponent.nupkg* which can be referenced in consuming apps. If you run into errors restoring NuGet packages, look at the docs on [NuGet restore options](https://docs.microsoft.com/nuget/consume-packages/package-restore). You may need to configure your NuGet package manager settings to allow for package restores on build.
 
 2. Build the *ConsoleAppSample* solution which references and restores  *SimpleMathComponent.nupkg* to consume the projection.
 
 For building with the command line, execute the following:
 
 ```cmd
 nuget restore
-msbuild /p:platform=x64;configuration=debug CppWinRTProjectionSample\CppWinRTComponentProjectionSample.sln
-msbuild /p:platform=x64;configuration=debug ConsoleAppSample\ConsoleAppSample.sln
+msbuild /p:platform=x64;configuration=debug CppWinRTComponentProjectionSample.sln
+msbuild /p:platform=x64;configuration=debug ConsoleAppSample.sln
 ```