update echoServerAddr to codec server and echo sample (#49)

README.md

@@ -41,7 +41,8 @@ func main() {
 	// automatically connect to the development server of yomo.run
 	// after successfully connected to the server, the plugin will receive the value
 	// of the key specified by the Observed() method every 2 seconds
-	yomo.RunDev(&EchoPlugin{}, "localhost:4241")
+	// yomo.RunDev(&EchoPlugin{}, "localhost:4241")
+  yomo.RunDevWith(&EchoPlugin{}, endpoint, yomo.OutputEchoData)
 }
 
 // EchoPlugin - a yomo plugin that converts received data into strings and appends
@@ -58,7 +59,7 @@ func (p *EchoPlugin) Handle(value interface{}) (interface{}, error) {
 // Observed - returns a value of type string, which is the key monitored by echo plugin;
 // the corresponding value will be passed into the Handle() method as an object
 func (p EchoPlugin) Observed() string {
-	return "name"
+	return "0x11" //name
 }
 
 // Name - sets the name of a given plugin p (mainly used for debugging)
@@ -77,7 +78,7 @@ func (p EchoPlugin) Mold() interface{} {
 1. Run `go run echo.go` from the terminal. If YoMo is installed successfully, you will see the following message:
 
 ```bash
-% go run a.go
+% go run echo.go
 [EchoPlugin:6031]2020/07/06 22:14:20 plugin service start... [localhost:4241]
 name:yomo!✅
 name:yomo!✅

README_CN.md

@@ -169,7 +169,8 @@ func main() {
 
   // 开发调试时运行该方法，处于联网状态时，程序会自动连接至 yomo.run 的开发服务器，连接成功后，
   // 该Plugin会每2秒收到一条Observed()方法指定的Key的Value
-  yomo.RunDev(&EchoPlugin{}, "localhost:4241")
+  // yomo.RunDev(&EchoPlugin{}, "localhost:4241")
+  yomo.RunDevWith(&EchoPlugin{}, endpoint, yomo.OutputEchoData)
 }
 
 // EchoPlugin 是一个YoMo Plugin，会将接受到的数据转换成String形式，并再结尾添加内容，修改
@@ -185,7 +186,7 @@ func (p *EchoPlugin) Handle(value interface{}) (interface{}, error) {
 // Observed 返回一个string类型的值，该值是EchoPlugin插件关注的数据流中的Key，该数据流中Key对应
 // 的Value将会以对象的形式被传递进Handle()方法中
 func (p EchoPlugin) Observed() string {
-	return "name"
+	return "0x11" //name
 }
 
 // Name 用于设置该Plugin的名称，方便Debug等操作

configs/echo.go

@@ -20,6 +20,6 @@ const (
 
 func GetEchoConf() EchoConf {
 	conf := EchoConf{}
-	conf.EchoServerAddr = env.GetString(echoServerAddr, "161.189.140.133:11520")
+	conf.EchoServerAddr = env.GetString(echoServerAddr, "161.189.140.133:11521")
 	return conf
 }