Add gh-pages deployment action

.github/workflows/build.yaml

@@ -31,3 +31,4 @@ jobs:
           gen-pack-script: ./gen_pack.sh --no-preprocess          # skipped by default
           gen-pack-output: ./output                               # skipped by default
           gh-pages-branch: gh-pages                               # default
+          gh-pages-deploy: gh-pages.yml                           # default, use gh-pages.yml

.github/workflows/gh-pages.yml

@@ -0,0 +1,46 @@
+# Simple workflow for deploying static content to GitHub Pages
+name: Deploy static content to GitHub Pages
+
+on:
+  # Runs on pushes targeting the default branch
+  push:
+    branches: [gh-pages]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# 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
+
+jobs:
+  # Single deploy job since we're just deploying
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v3
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v1
+        with:
+          # Upload entire repository
+          path: '.'
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v1