Indicate license link to the local file (#442)

It works on both web and local renders.

README.md

@@ -2,7 +2,7 @@
 [![Android API](https://img.shields.io/badge/api-21%2B-brightgreen.svg?style=for-the-badge)](https://android-arsenal.com/api?level=21)
 [![kotlin](https://img.shields.io/github/languages/top/adrielcafe/voyager.svg?style=for-the-badge&color=blueviolet)](https://kotlinlang.org/)
 [![ktlint](https://img.shields.io/badge/code%20style-%E2%9D%A4-FF4081.svg?style=for-the-badge)](https://ktlint.github.io/)
-[![License MIT](https://img.shields.io/github/license/adrielcafe/voyager.svg?style=for-the-badge&color=orange)](https://opensource.org/licenses/MIT)
+[![License MIT](https://img.shields.io/github/license/adrielcafe/voyager.svg?style=for-the-badge&color=orange)](LICENSE.md)
 
 <h1 align="center">
     <img height="150" src="https://user-images.githubusercontent.com/2512298/127723355-f56b3040-47cb-44fd-8504-a1868721c1a3.png"/>