fix: HMR is broken in list

Example:

```
::list
- Hey there with **what** interesting
::
```

When editing it live, the content is not updated, I need to refresh the page.

Also, this:

```md
::list
- Are you [Nuxt](https://nuxtjs.org)?
::
```

Renders:
![Screenshot 2021-06-09 at 18.54.46.png](https://maintainers.s3.fr-par.scw.cloud/Screenshot_2021_06_09_at_18_54_46_79eadde8e7.png)
