rehype-expressive-code 
This package is a unified (rehype) plugin to automatically render code blocks in your markdown / MDX documents using Expressive Code.
Documentation
Read the Expressive Code docs to learn more about the features provided by Expressive Code and this integration.
When should I use this?
When you're using markdown / MDX and want to improve the design and functionality of all contained code blocks using Expressive Code.
Installation
Read the installation instructions to learn how to install Expressive Code.