Set up GitHub Pages auto-deploy

Author: KavetiRohith

.github/workflows/deploy.yml

@@ -0,0 +1,30 @@
+name: Deploy mdBook to GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Install mdBook
+        run: cargo install mdbook --locked
+
+      - name: Build the book
+        run: mdbook build
+
+      - name: Add .nojekyll
+        run: touch book/.nojekyll
+
+      - name: Deploy to GitHub Pages 🚀
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./book
+          publish_branch: gh-pages