Add separator: ","

.github/workflows/vale_2.yml

@@ -16,6 +16,7 @@ jobs:
             # Avoid using single or double quotes for multiline patterns
             files: |
                docs/**
+            separator: ","
       - name: List all changed files markdown files
         if: steps.changed-markdown-files.outputs.any_changed == 'true'
         env: