ci: added .github

Author: bresilla

.github/workflows/book.yml

@@ -0,0 +1,34 @@
+name: book
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+concurrency:
+  group: book-pages
+  cancel-in-progress: true
+
+jobs:
+  deploy_site:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup mdBook
+        uses: peaceiris/actions-mdbook@v1
+        with:
+          mdbook-version: 'latest'
+
+      - name: Build book
+        run: mdbook build book --dest-dir docs
+
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./docs