add ci script

.github/workflows/ci.yml

@@ -0,0 +1,20 @@
+name: main
+on: [push, repository_dispatch]
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    name: Build and test
+    steps:
+      - uses: styfle/[email protected]
+        with:
+          access_token: ${{ github.token }}
+
+      - uses: actions/checkout@v1
+
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '16.4'
+
+      - run: npm install
+
+      - run: npm test