`ignorePatterns` doesn't prevent error on directories

[janosh]

With this config,

{
  "ignorePatterns": [{ "pattern": "^./src/routes/" }]
}

and this link

```md
[link to directory](./src/routes/dir)
```

I still get the error

ERROR: ./src/routes/dir is a directory! Please provide a valid filename as an argument.

[solarjan97]

Hi @janosh, how did you get the error? Is it implemented as a part of markdown-link-check or is that your own functionality?

[janosh]

This was using gaurav-nelson/github-action-markdown-link-check in this repo iirc.