feat(docs): add github page action

.github/workflows/docs.yml

@@ -0,0 +1,46 @@
+name: docs
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  publish:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+
+      - name: setup-pages
+        uses: actions/configure-pages@v5
+
+      - name: setup-zig
+        uses: mlugg/setup-zig@v1
+        with:
+          version: 0.13.0
+
+      - name: build-docs
+        run: zig build docs
+
+      - name: upload
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: 'zig-out/docs'
+
+      - name: deploy
+        id: deployment
+        uses: actions/deploy-pages@v4
+