ci: book deployment workflow (#242)

* ci: book deployment workflow

* ci: modernize book publish workflow

.github/workflows/book.yml

@@ -27,3 +27,42 @@ jobs:
 
       - name: Run tests
         run: mdbook test
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Install mdbook
+        run: |
+          mkdir mdbook
+          curl -sSL https://github.com/rust-lang/mdBook/releases/download/v0.4.14/mdbook-v0.4.14-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=./mdbook
+          echo `pwd`/mdbook >> $GITHUB_PATH
+
+      - name: Build
+        run: mdbook build
+
+      - name: Save pages artifact
+        uses: actions/upload-pages-artifact@v1
+        with:
+          path: target/book
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: [test, build]
+
+    # Grant GITHUB_TOKEN the permissions required to make a Pages deployment
+    permissions:
+      pages: write
+      id-token: write
+
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v1