Potential fix for code scanning alert no. 3: Workflow does not contain permissions (#1887)

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: mackowski

.github/workflows/md-link-check.yml

@@ -8,6 +8,9 @@ on:
 
 jobs:
   link-check:
+    permissions:
+      contents: read
+      pull-requests: write
     runs-on: ubuntu-24.04
     env:
       CI: true