Use hugo instead of mkdocs for the documentation (#722)

Author: liuzicheng1987

.github/workflows/docs.yaml

@@ -0,0 +1,70 @@
+name: Deploy documentation to Github Pages
+
+on:
+  push:
+    branches: ["main"]
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+# Default to bash
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  # Build job
+  build:
+    runs-on: ubuntu-latest
+    env:
+      HUGO_VERSION: 0.156.0
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # fetch all history for .GitInfo and .Lastmod
+          submodules: recursive
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.26'
+      - name: Setup Pages
+        id: pages
+        uses: actions/configure-pages@v4
+      - name: Setup Hugo
+        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 ${{ runner.temp }}/hugo.deb
+      - name: Build with Hugo
+        env:
+          # For maximum backward compatibility with Hugo modules
+          HUGO_ENVIRONMENT: production
+          HUGO_ENV: production
+        run: |
+          hugo --gc --minify --baseURL "${{ steps.pages.outputs.base_url }}/"
+        working-directory: docs
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: ./docs/public
+
+  # Deployment job
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

.github/workflows/mkdocs-gh-pages.yaml

@@ -64,6 +64,8 @@
 !.github/**/*.yml
 !.github/**/*.yaml
 !benchmarks/**/*.json
+!docs/**/*.yaml
+!docs/**/*.mod
 
 # clangd
 compile_flags.txt
@@ -95,6 +97,8 @@ share/python-wheels/
 .installed.cfg
 *.egg
 MANIFEST
+docs/public/
+*.lock
 
 # Docs
 site/