tst code style checker

Author: mmcky

.github/workflows/code-style-check.yml

@@ -0,0 +1,31 @@
+name: Code Style Formatter
+on:
+  issue_comment:
+     types: [created]
+
+
+jobs:
+  format-code:
+    if: github.event.issue.pull_request && contains(github.event.comment.body, '@quantecon-code-style')
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout PR branch
+      uses: actions/checkout@v4
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        ref: ${{ github.event.pull_request.head.ref }}
+    
+    - name: Get changed files
+      id: changed-files
+      uses: tj-actions/changed-files@v40
+      with:
+        files: '**/*.md'
+    
+    - name: Format markdown files
+      uses: QuantEcon/meta/.github/actions/code-style-checker@copilot/fix-221-3
+      with:
+        files: ${{ steps.changed-files.outputs.all_changed_files }}
+    
+    - name: Push changes
+      run: git push