fix: typo

README.md

@@ -3,6 +3,6 @@ curl -X POST http://127.0.0.1:8080/api/v1/subscribe -d '{"email": "12@qq.com"}'
 {"code":0,"error":""}
 ```
 ```
-curl -X POST http://127.0.0.1:8080/api/v1/concat -d '{"email": "12@qq.com", "name": "bob", "message": "testmessage"}'
+curl -X POST http://127.0.0.1:8080/api/v1/contact -d '{"email": "12@qq.com", "name": "bob", "message": "testmessage"}'
 {"code":0,"error":""}
 ```
\ No newline at end of file

main.go

@@ -21,7 +21,7 @@ func main() {
 	e.Use(cors.New(_cors))
 
 	e.POST("/api/v1/subscribe", userSubscribe)
-	e.POST("/api/v1/concat", userContactUs)
+	e.POST("/api/v1/contact", userContactUs)
 
 	e.Run(config.Listen)
 }