update README

Author: phamtai97

README.md

@@ -3,7 +3,7 @@
 [![version](https://img.shields.io/badge/repo%20status-active-brightgreen)](https://github.com/zalopay-oss/go-advanced)
 [![version](https://img.shields.io/badge/version-1.3.0--beta-blue)](https://github.com/zalopay-oss/go-advanced/tree/v1.3.0-beta)
 [![version](https://img.shields.io/badge/contributors-5-blueviolet)](#tham-gia-phát-triển)
-[![version](https://img.shields.io/badge/last%20change-03%2F09%2F2018-yellowgreen)]()
+![version](https://img.shields.io/badge/last%20change-03%2F09%2F2018-yellowgreen)
 [![version](https://img.shields.io/badge/open%20issues-1-red)](https://github.com/zalopay-oss/go-advanced/issues)