Add GitHub Actions workflow to update README

.github/workflows/on-file-change.yml

@@ -0,0 +1,34 @@
+name: Update README from Pytudes
+
+on:
+  push:
+    paths:
+      - 'py/pytudes.py'
+
+jobs:
+  build-and-update:
+    runs-on: ubuntu-latest
+    # Added permissions to allow the bot to write to the repo
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Run pytudes.py
+        run: python py/pytudes.py
+
+      - name: Commit and push if README changed
+        run: |
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
+          git add README.md
+          # The || exit 0 prevents the workflow from failing if there are no changes
+          git commit -m "docs: auto-update README.md via pytudes.py" || exit 0
+          git push