在 markdown 中添加组件，如：示例
如何做到？
使用 mdx
代码：
import {Chart} from './snowfall.js'
export const year = 2023
# Last year’s snowfall
In {year}, the snowfall was above average. It was followed by a warm spring which caused flood conditions in many of the nearby rivers.
<Chart year={year} color="#fcb32c" />渲染：
