docs(README): fix license badge url

README.md

@@ -4,7 +4,7 @@ Electron Forge
 [![Commitizen friendly](https://img.shields.io/badge/commitizen-friendly-brightgreen.svg)](http://commitizen.github.io/cz-cli/)
 [![npm version](https://badge.fury.io/js/electron-forge.svg)](https://www.npmjs.com/package/electron-forge)
 [![npm](https://img.shields.io/npm/dt/electron-forge.svg?maxAge=2592000)](https://www.npmjs.com/package/electron-forge)
-[![license](https://img.shields.io/github/license/MarshallOfSound/electron-forge.svg?maxAge=2592000)](https://github.com/MarshallOfSound/electron-forge/blob/master/LICENSE)
+[![license](https://img.shields.io/github/license/MarshallOfSound/electron-forge.svg)](https://github.com/MarshallOfSound/electron-forge/blob/master/LICENSE)
 ![status](https://img.shields.io/badge/Status-%20Ready%20for%20Awesome-red.svg)
 
 > The simple way to get started with Electron