Merge pull request #7688 from dgquintas/cpp_readme

fix c++ readme and tutorial

examples/cpp/README.md

@@ -2,26 +2,14 @@
 
 ## Installation
 
-To install gRPC on your system, follow the instructions to build from source [here](../../INSTALL.md). This also installs the protocol buffer compiler `protoc` (if you don't have it already), and the C++ gRPC plugin for `protoc`.
+To install gRPC on your system, follow the instructions to build from source
+[here](../../INSTALL.md). This also installs the protocol buffer compiler
+`protoc` (if you don't have it already), and the C++ gRPC plugin for `protoc`.
 
 ## Hello C++ gRPC!
 
-Here's how to build and run the C++ implementation of the [Hello World](../protos/helloworld.proto) example used in [Getting started](..).
-
-The example code for this and our other examples lives in the `examples`
-directory. Clone this repository to your local machine by running the
-following command:
-
-
-```sh
-$ git clone -b $(curl -L http://grpc.io/release) https://github.com/grpc/grpc
-```
-
-Change your current directory to examples/cpp/helloworld
-
-```sh
-$ cd examples/cpp/helloworld/
-```
+Here's how to build and run the C++ implementation of the [Hello
+World](../protos/helloworld.proto) example used in [Getting started](..).
 
 ### Client and server implementations
 
@@ -31,18 +19,25 @@ The server implementation is at [greeter_server.cc](helloworld/greeter_server.cc
 
 ### Try it!
 Build client and server:
+
 ```sh
 $ make
 ```
+
 Run the server, which will listen on port 50051:
+
 ```sh
 $ ./greeter_server
 ```
+
 Run the client (in a different terminal):
+
 ```sh
 $ ./greeter_client
 ```
-If things go smoothly, you will see the "Greeter received: Hello world" in the client side output.
+
+If things go smoothly, you will see the "Greeter received: Hello world" in the
+client side output.
 
 ## Tutorial