Custom Scope Definitions

[Jab2870]

Check for existing issues

• Completed

Describe the feature

First off, thank you for creating and maintaining this tool.

We have a number of markdown extensions we use that (for example) turn a yaml block into a table.

For instance:

```{.table align=xX}
- Instance: Exmple 1
  Details: some detail
- Instance: Example 2
  Details: some different detail
```

Creates

It would be nice if I could define a regex so that vale knows to treat this as a table, applying any <th> rules to the yaml keys, and <td> rules to the yaml values.

I have read through the documentation, and the non-standard markup section, only appears to deal with ignoring markup, not treating it as a specific type of markup