😒 chore(README): Link to main branch.

Author: make-github-pseudonymous-again

README.md

@@ -13,7 +13,7 @@ See [docs](https://aureooms.github.io/js-mincut/index.html).
 mincut([[0,1],[1,2],[1,3],[2,3],[0,4],[0,5],[4,5]]); // 0--1
 ```
 
-[![License](https://img.shields.io/github/license/aureooms/js-mincut.svg?style=flat)](https://raw.githubusercontent.com/aureooms/js-mincut/master/LICENSE)
+[![License](https://img.shields.io/github/license/aureooms/js-mincut.svg?style=flat)](https://raw.githubusercontent.com/aureooms/js-mincut/main/LICENSE)
 [![NPM version](https://img.shields.io/npm/v/@aureooms/js-mincut.svg?style=flat)](https://www.npmjs.org/package/@aureooms/js-mincut)
 [![Build status](https://img.shields.io/travis/aureooms/js-mincut.svg?style=flat)](https://travis-ci.org/aureooms/js-mincut)
 [![Coverage status](https://img.shields.io/coveralls/aureooms/js-mincut.svg?style=flat)](https://coveralls.io/r/aureooms/js-mincut)