Update README

Author: devlights

README.md

@@ -2,7 +2,7 @@
 
 This is my TUTORIAL project for golang
 
-![try-golang - Go Version](https://img.shields.io/badge/go-1.17-blue.svg)
+![try-golang - Go Version](https://img.shields.io/badge/go-1.18-blue.svg)
 [![CodeFactor](https://www.codefactor.io/repository/github/devlights/try-golang/badge/master)](https://www.codefactor.io/repository/github/devlights/try-golang/overview/master)
 ![Go](https://github.com/devlights/try-golang/workflows/Go/badge.svg?branch=master)