update README

Author: motdotla

README.md

@@ -1,4 +1,4 @@
-# dotenv [![NPM version](https://img.shields.io/npm/v/dotenv.svg?style=flat-square)](https://www.npmjs.com/package/dotenv) [![LICENSE](https://img.shields.io/github/license/motdotla/dotenv.svg)](LICENSE) [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard) [![codecov](https://codecov.io/gh/motdotla/dotenv-expand/graph/badge.svg?token=pawWEyaMfg)](https://codecov.io/gh/motdotla/dotenv-expand)
+# dotenv [![NPM version](https://img.shields.io/npm/v/dotenv.svg?style=flat-square)](https://www.npmjs.com/package/dotenv) [![LICENSE](https://img.shields.io/github/license/motdotla/dotenv.svg)](LICENSE) [![codecov](https://codecov.io/gh/motdotla/dotenv-expand/graph/badge.svg?token=pawWEyaMfg)](https://codecov.io/gh/motdotla/dotenv-expand)
 
 <img src="https://raw.githubusercontent.com/motdotla/dotenv/master/dotenv.svg" alt="dotenv" align="right" width="200" />