Add deploy script

Author: karnkaul

.github/workflows/deploy.yml

@@ -0,0 +1,35 @@
+name: Deploy
+on:
+  push:
+    branches:
+      - main
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write  # To push a branch 
+      pages: write  # To push to a GitHub Pages site
+      id-token: write # To update the deployment status
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: init
+        run: |
+          url="https://github.com/rust-lang/mdBook/releases/download/v0.4.47/mdbook-v0.4.47-x86_64-unknown-linux-gnu.tar.gz"
+          mkdir mdbook
+          curl -sSL $url | tar -xz --directory=./mdbook
+          echo `pwd`/mdbook >> $GITHUB_PATH
+      - name: build book
+        run: |
+          cd guide
+          mdbook build
+      - name: setup pages
+        uses: actions/configure-pages@v4
+      - name: upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: 'book'
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4