message: Update CI badge url from shields.io in README
diff: <p align="center">
  <a href="https://opensource.org/licenses/MIT" target="_blank"><img src="https://img.shields.io/badge/license-MIT-green.svg"></a>
  <a href="https://www.npmjs.com/package/embla-carousel" target="_blank"><img src="https://img.shields.io/npm/v/embla-carousel.svg"></a>
  - ![build](https://github.com/davidcetinkaya/embla-carousel/workflows/Continuous%20Integration/badge.svg)
  + <a href="https://github.com/davidcetinkaya/embla-carousel/actions?query=workflow%3A%22Continuous+Integration%22" target="_blank"><img src="https://img.shields.io/github/workflow/status/davidcetinkaya/embla-carousel/Continuous%2520Integration"></a>
  <a href="https://prettier.io" target="_blank"><img src="https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat"></a>
  <a href="https://www.npmjs.com/package/embla-carousel" target="_blank"><img src="https://img.shields.io/bundlephobia/minzip/embla-carousel?color=%234c1&label=gzip%20size">
  </a>
  