ci(actions): add doc deployment action

.github/workflows/docs.yml

@@ -0,0 +1,71 @@
+name: Deploy Docs
+
+on:
+  push:
+    paths:
+      - 'docs/**'
+    branches:
+      - master
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    env:
+      HUGO_VERSION: 0.119.0
+    steps:
+      - name: Install Hugo CLI
+        run: |
+          wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb \
+          && sudo dpkg -i ${{ runner.temp }}/hugo.deb
+      - name: Install Dart Sass
+        run: sudo snap install dart-sass
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+          fetch-depth: 0
+      - name: Setup Golang env
+        uses: actions/setup-go@v3
+        with:
+          go-version-file: go.mod
+          cache: true
+      - name: Generate CLI docs
+        run: go run main.go gen doc -d docs/content/en/docs/more/cli
+      - name: Setup Pages
+        id: pages
+        uses: actions/configure-pages@v3
+      - name: Build with Hugo
+        env:
+          HUGO_ENVIRONMENT: production
+          HUGO_ENV: production
+        run: |
+          cd docs
+          hugo \
+            --gc \
+            --minify \
+            --baseURL "${{ steps.pages.outputs.base_url }}/"
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v1
+        with:
+          path: ./docs/public
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-20.04
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2