Add github workflow for build and deploy to Firebase hosting

Author: PoojaB26

.github/workflows

@@ -0,0 +1,26 @@
+name: Deploy to Firebase Hosting
+
+on:
+  push:
+    branches:
+      - main  # deploy when pushed to this branch
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v2
+
+    - name: Install Dependencies
+      run: npm install
+
+    - name: Build
+      run: npm run build
+
+    - name: Deploy to Firebase
+      uses: w9jds/firebase-action@master
+      with:
+        args: deploy --only hosting
+      env:
+        FIREBASE_TOKEN: ${{ secrets.FIREBASE_TOKEN }}