How to replace content before vitepress process it?

[HazzazBinFaiz]

We have a collection of markdown files organized in directory.

We've used a little code snippet at the bottom of each markdown page for some metadata. like below

```yaml
title: Title of the page
contributors: Mr. X, Mr. Y
```

I want to convert the title to Frontmatter title and pass contributor name(s) in a component. like below

---
title: Title of the page
---

<Contributors names="Mr. X, Mr. Y" />

How can I replace those content of file before vitepress process it.

[brc-dd]

Write some markdown-it plugin for that.