Improving the rendering of MyST markdown

[anjos]

I wonder if anybody in this community is using MyST (https://myst-parser.readthedocs.io/en/latest/), and if this plugin, with some configuration tweaking, could slightly improve rendering of that variant.

A simple index file from my docs presently renders like this:

[schmoelder]

I'd also be very interested. Even without more complex directives, rendering anything other than code in between fences does not seep to properly work.

E.g.

```
| Header 1 | Header 2 |
| -------- | -------- |
| a        | b        | 
```

renders as