Update README.md

examples/csharp/helloworld/README.md

@@ -16,35 +16,17 @@ PREREQUISITES
 - Visual Studio 2013 or 2015
 
 **Linux**
-- Mono
-- Monodevelop 5.9 with NuGet Add-in installed
+- Mono 4.0+
+- Monodevelop 5.9+ (with NuGet plugin installed)
 
 **Mac OS X**
-- Xamarin Studio (with NuGet plugin installed)
+- Xamarin Studio 5.9+
 - [homebrew][]
 
 BUILD
 -------
 
-**Windows**
-
-- Open solution `Greeter.sln` with Visual Studio
-
-- Build the solution (this will automatically download NuGet dependencies)
-
-**Linux (Debian)**
-
-- Install gRPC C core and C# native extension using [How to use gRPC C#][] instructions
-
-- Open solution `Greeter.sln` in MonoDevelop.
-
-- Build the solution (you need to manually restore dependencies by using `mono nuget.exe restore` if you don't have NuGet add-in)
-
-**Mac OS X**
-
-- Install gRPC C core and C# native extension using [How to use gRPC C#][] instructions
-
-- Open solution `Greeter.sln` with Xamarin Studio
+- Open solution `Greeter.sln` with Visual Studio, Monodevelop (on Linux) or Xamarin Studio (on Mac OS X)
 
 - Build the solution (this will automatically download NuGet dependencies)
 
@@ -65,7 +47,7 @@ Try it!
   > GreeterClient.exe
   ```
 
-You can also run the server and client directly from Visual Studio.
+You can also run the server and client directly from the IDE.
 
 On Linux or Mac, use `mono GreeterServer.exe` and `mono GreeterClient.exe` to run the server and client.
 
@@ -76,5 +58,4 @@ You can find a more detailed tutorial in [gRPC Basics: C#][]
 
 [homebrew]:http://brew.sh
 [helloworld.proto]:../../protos/helloworld.proto
-[How to use gRPC C#]:../../../src/csharp#how-to-use
 [gRPC Basics: C#]:http://www.grpc.io/docs/tutorials/basic/csharp.html