This plugin seems incompatible with https://crates.io/crates/mdbook-alerts due to the following warnings:

2025-07-19 14:35:49 [INFO] (mdbook::renderer): Invoking the "linkcheck" renderer
warning: Potential incomplete link
   ┌─ index.md:10:3
   │
10 │ > [!IMPORTANT]
   │   ^^^^^^^^^^^^ Did you forget to define a URL for `!IMPORTANT`?
   │
   = hint: declare the link's URL. For example: `[!IMPORTANT]: http://example.com/`

I know that I can set warning-policy to ignore, but I do want to keep these as warnings generally.

But -- I do wish I could silence these for things like [!IMPORTANT] by adding them to an exclude that operates on the [some page] piece of [some page](./index.html), rather than the href (./index.html) as exclude currently does.