ci: deploy to firebase

.github/workflows/master.yml

@@ -0,0 +1,24 @@
+name: CI
+
+on:
+  push:
+    branches:    
+      - master
+        
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/setup-node@v1
+      with:
+        node-version: '13.x'
+    - run: npm install
+    - run: npm test
+    - run: npm run build
+    - uses: w9jds/firebase-action@master
+      with:
+       args: deploy --only hosting
+      env:
+       FIREBASE_TOKEN: ${{ secrets.FIREBASE_TOKEN }}