False positives on Github wiki page repo

[kaktusztea]

Hi,

I use your markdown link checker in my repo and it works great. Great job, thanks!

Although I run it on the wiki page repo as well and all its relative links are reported as false positive (signs as faulty links): Action log

Example: [Metamágia](STUDY.magia.metamagia)

The links there should be without the .md extension to work well and linter-check thinks this format is faulty.

Action yaml:

name: Check Markdown links in wiki repo

on: push

jobs:
  markdown-link-check:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@master
      with:
        repository: ${{github.repository}}.wiki
    - uses: gaurav-nelson/github-action-markdown-link-check@v1