feat: add ci (#7)

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: CI
+
+permissions:
+  contents:
+    read: all
+  pull_requests:
+    read: all
+
+on:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up pnpm
+        uses: pnpm/action-setup@v3
+
+      - name: Use Node.js 18
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: "pnpm"
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Build Docusaurus
+        run: pnpm docusaurus build