Add GitHub Actions workflow for publishing documentation

Author: d0rich

.github/workflows/docs.yaml

@@ -0,0 +1,34 @@
+name: Publish Docs
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+
+      - name: Use Node.js 22
+        uses: actions/setup-node@v3
+        with:
+          node-version: 22.11.0
+
+      - name: Installing packages
+        working-directory: ./docs
+        run: npm install
+
+      - name: Build Nuxt 3 static site
+        working-directory: ./docs
+        run: npx nuxi generate
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        if: github.ref == 'refs/heads/master'
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./docs/dist
+          commit_message: 'Automatic deploy: ${{ github.event.head_commit.message }}'