package: update branch name

README.md

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 # terser-glob
 
-[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/jooy2/terser-glob/blob/master/LICENSE) ![Programming Language Usage](https://img.shields.io/github/languages/top/jooy2/terser-glob) ![Commit Count](https://img.shields.io/github/commit-activity/y/jooy2/terser-glob) [![npm downloads](https://img.shields.io/npm/dm/terser-glob.svg)](https://www.npmjs.com/package/terser-glob) [![npm latest package](https://img.shields.io/npm/v/terser-glob/latest.svg)](https://www.npmjs.com/package/terser-glob) ![npm bundle size](https://img.shields.io/bundlephobia/min/terser-glob) [![Followers](https://img.shields.io/github/followers/jooy2?style=social)](https://github.com/jooy2) ![Stars](https://img.shields.io/github/stars/jooy2/terser-glob?style=social)
+[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/jooy2/terser-glob/blob/main/LICENSE) ![Programming Language Usage](https://img.shields.io/github/languages/top/jooy2/terser-glob) ![Commit Count](https://img.shields.io/github/commit-activity/y/jooy2/terser-glob) [![npm downloads](https://img.shields.io/npm/dm/terser-glob.svg)](https://www.npmjs.com/package/terser-glob) [![npm latest package](https://img.shields.io/npm/v/terser-glob/latest.svg)](https://www.npmjs.com/package/terser-glob) ![npm bundle size](https://img.shields.io/bundlephobia/min/terser-glob) [![Followers](https://img.shields.io/github/followers/jooy2?style=social)](https://github.com/jooy2) ![Stars](https://img.shields.io/github/stars/jooy2/terser-glob?style=social)
 
 A CLI module that allows you to work with multiple files at once using the glob pattern in the terser cli.