added github workflows

.github/workflows/build.yml

@@ -0,0 +1,22 @@
+name: Build and test
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Install dependencies
+        run: npm install
+      - name: Build
+        run: npm run build
+      - name: Test
+        run: npm test

.github/workflows/publish-on-tag.yml

@@ -0,0 +1,30 @@
+name: Publish to npm
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Use Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: '14'
+          registry-url: 'https://registry.npmjs.org/'
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Build
+        run: npm run build # or your build script
+
+      - name: Publish to npm
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}