get all the changed files and list the markdown ones

Author: nsryan2

.github/workflows/changelog_test.yml

@@ -20,6 +20,23 @@ jobs:
           echo "Changed files:"
           echo "${{ github.event.pull_request.changed_files }}"
 
+      - name: Get all changed markdown files
+        id: changed-markdown-files
+        uses: tj-actions/changed-files@v44
+        with:
+          # Avoid using single or double quotes for multiline patterns
+          files: |
+              **.md
+
+      - name: List all changed files markdown files
+        if: steps.changed-markdown-files.outputs.any_changed == 'true'
+        env:
+          ALL_CHANGED_FILES: ${{ steps.changed-markdown-files.outputs.all_changed_files }}
+        run: |
+          for file in ${ALL_CHANGED_FILES}; do
+            echo "$file was changed"
+          done
+
       - name: Check for CHANGELOG.md update
         id: changelog-check
         run: |