fix readme

Author: christiannagel

EFCore/README.md

@@ -2,17 +2,8 @@
 
 The sample code for this chapter contains this solution:
 
-* HelloWindows (Startup, MainPage, events)
-* IntroXAML
-    * DataLib (library used by Windows App)
-    * XAMLIntro (elements and attributes)
-    * DependencyObjectSample (dependency properties)
-    * RoutedEvents
-    * AttachedProperty
-    * MarkupExtensions
-    * CustomMarkupExtension
-
-    
+* EFCoreSamples
+
 consisting of these sample projects
 
 * Intro (introduction to EF Core with models, contexts, creating the database, read, write, update, delete, logging)
@@ -33,11 +24,9 @@ consisting of these sample projects
 * TransactionsSample (explicit transactions)
 * MigrationsLib/ConsoleApp/WebApp (migrations with dependency injection and a library)
 
-To build and run the .NET Core samples, please install one of these tools:
+To build and run the .NET Core samples, please install
 
 * Visual Studio 2017 Update 5 with the .NET Core workload
-* Visual Studio for Mac
-* Visual Studio Code
 
 Please download and install the tools from [.NET Core downloads](https://www.microsoft.com/net/core).