Update README.md

README.md

 # gRPC only cpp client 
 
-using only grpc to create a client, to communicate with tensorflow_serving container
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+Using only grpc to communicate with tensorflow_serving container.
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+inspired by https://stackoverflow.com/questions/55033952/grpc-only-tensorflow-serving-client-in-c
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+To use this u need to install:
+grpcio ,
+grpcio_tools ,
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