Added githib workfloe for GIT CI/CD

Author: aaryan359

.github/workflows/deploy-prod.yml

@@ -0,0 +1,33 @@
+name: Deploy Open Course
+
+on:
+  push:
+    branches:
+      - prod   
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 18
+          cache: npm
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Build project
+        run: npm run dev
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: /   # Vite → dist | CRA → build
+          publish_branch: gh-pages