Add Github Action for the table of contents

.github/workflows/regenerate-toc.yml

@@ -0,0 +1,29 @@
+name: Regenerate Table of Contents
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+    - run: npm i -g doctoc # Install DocToc https://www.npmjs.com/package/doctoc
+    - run: doctoc README.md # Process the file and regenerate its ToC
+