update: readme

README.md

@@ -1,3 +1,51 @@
-# Stallion
+<h1 align="center">
+Stallion
+</h1>
 
 Message broker with Golang.
+
+## How to use?
+Get package:
+```shell
+go get github.com/amirhnajafiz/stallion
+```
+
+### Client
+```go
+package main
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/amirhnajafiz/stallion"
+)
+
+func main() {
+	client, err := stallion.NewClient("localhost:9090")
+	if err != nil {
+		panic(err)
+	}
+
+	client.Subscribe("topic", func(data []byte) {
+		fmt.Println(string(data))
+	})
+
+	client.Publish("topic", []byte("Hello"))
+
+	time.Sleep(3 * time.Second)
+}
+```
+
+### Server
+```go
+package main
+
+import "github.com/amirhnajafiz/stallion"
+
+func main() {
+	if err := stallion.NewServer(":9090"); err != nil {
+		panic(err)
+	}
+}
+```