Update README.md

README.md

-Use the batch files to generate the code.
-For C# the nuget package Grpc.Tools must be installed. Also install the package Grpc for using the API.
+Using Cap'n'Proto as rpc framework.  It works via passing capabilites so we can easily extend the functionality from the client and server side.
 
-For C++ use ninja & cmake as described in https://github.com/grpc/grpc/blob/master/INSTALL.md : (Use VS Developer Command Prompt)
+Use the capnptool to generate the code: https://capnproto.org/capnp-tool.html
 
-For VS2017 replace: > call "%VS140COMNTOOLS%..\..\VC\vcvarsall.bat" x64 
-with: > call "%VS150COMNTOOLS%..\..\VC\Auxiliary\Build\vcvarsall.bat" x64
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+As a design decision the frontend uses a native dll which encapsulates the framework.
+The capnproto does not compile with the /clr flag!
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