chore(README): updated codecov badge

README.md

@@ -2,7 +2,7 @@
 
 [![CD](https://github.com/alfredosalzillo/rollup-plugin-multi-input/workflows/CD/badge.svg)](https://github.com/alfredosalzillo/rollup-plugin-multi-input/actions/workflows/CD.yml)
 [![CI](https://github.com/alfredosalzillo/rollup-plugin-multi-input/workflows/CI/badge.svg)](https://github.com/alfredosalzillo/rollup-plugin-multi-input/actions/workflows/CI.yml)
-[![codecov](https://codecov.io/gh/alfredosalzillo/rollup-plugin-multi-input/branch/master/graph/badge.svg)](https://codecov.io/gh/alfredosalzillo/rollup-plugin-multi-input)
+[![codecov](https://codecov.io/gh/alfredosalzillo/rollup-plugin-multi-input/branch/main/graph/badge.svg)](https://codecov.io/gh/alfredosalzillo/rollup-plugin-multi-input)
 [![npm version](https://badge.fury.io/js/rollup-plugin-multi-input.svg)](https://badge.fury.io/js/rollup-plugin-multi-input)
 [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
 [![](https://data.jsdelivr.com/v1/package/npm/rollup-plugin-multi-input/badge?style=rounded)](https://www.jsdelivr.com/package/npm/rollup-plugin-multi-input)