Update README for Guide.

README.md

@@ -1,12 +1,47 @@
 # PingPong Server
 this is grpc server for testing pbkit packages.
 
+## Before Start
+
+Require installing [pollapo](https://pbkit.dev/docs/getting-started/installation), [go](https://go.dev/doc/install), [protoc](https://github.com/protocolbuffers/protobuf/releases/tag/v21.8).
+
+(Require installing [nodejs](https://nodejs.org/ko/download/) and [yarn](https://yarnpkg.com/getting-started/install) for client.)
+
+And Install `protoc-gen-go` and `protoc-gen-go-grpc`.
+
+- MacOS
+    - Run `brew install protoc-gen-go protoc-gen-go-grpc`
+- Windows
+    - Run `go install google.golang.org/protobuf/cmd/protoc-gen-go@latest`
+    - Run `go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest`
+
+Clone pingpong-server and api-common-protos.
+
+```sh
+git clone https://github.com/pbkit/pingpong-server.git
+git clone https://github.com/googleapis/api-common-protos.git
+```
+
 ## How to start?
+
+Gen go file for protoc.
+
 ```sh
-brew tap riiid/riiid
-brew install pbkit
-brew install go protoc-gen-go protoc-gen-go-grpc
+cd ./pingpong-server
+
 pollapo install
-protoc --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative -I=.pollapo .pollapo/pbkit/interface-pingpong-server/pingpong.proto
+
+protoc --go_out="." --go_opt=paths=source_relative --go-grpc_out="." --go-grpc_opt=paths=source_relative -I=".pollapo" .pollapo/pbkit/interface-pingpong-server/pingpong.proto -I="../api-common-protos/"
+```
+
+And start pingpong server.
+
+```sh
 go run main.go
 ```
+
+### Then...
+
+Clone [pingpong-client](https://github.com/pbkit/pingpong-client) and Install [pbkit-devtools](https://github.com/pbkit/pbkit-devtools).
+
+And Enjoy Coding!