chore: update .github/workflows/ci.yml

Author: jaywcjlove

.github/workflows/ci.yml

@@ -0,0 +1,23 @@
+name: Website
+on:
+  push:
+    branches:
+      - master
+jobs:
+  build:
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 14
+
+      - run: mkdir -p build
+      - run: npm i markdown-to-html-cli -g
+      - run: markdown-to-html --output build/index.html
+
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./build