add github workflow

Author: ngjiayuan

.github/workflows/pullrequest.yml

@@ -0,0 +1,25 @@
+name: Build on Pull Request
+
+on:
+  pull_request:
+    branches:
+      - "*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: "18" # You can specify the Node.js version you need
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Build
+        run: npm run build