Add github actions

.github/workflows/npm.yml

@@ -0,0 +1,25 @@
+# GitHub Actions docs
+# https://help.github.com/en/articles/about-github-actions
+# https://help.github.com/en/articles/workflow-syntax-for-github-actions
+name: Angular CI with npm
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Use Node.js 12.8
+      uses: actions/setup-node@v1
+      with:
+        node-version: 12.8
+    - name: Install dependencies
+      run: npm install
+    - name: Build
+      run: npm run build -- --prod