basic sample done

cmd/main.go

@@ -1,17 +1,15 @@
 package main
 
 import (
-	"fmt"
-
 	"gitea.sitodosi.com/betology/got/handler"
-	"github.com/labstack/echo"
+	"github.com/labstack/echo/v4"
 )
 
 func main() {
 	app := echo.New()
 
 	userHandler := handler.UserHandler{}
-	app.GET("/user", userHandler.HandlerUserShow())
+	app.GET("/user", userHandler.HandlerUserShow)
 
-	app.Start(:3000)
+	app.Start(":3000")
 }