Add GitHub Action to deploy to GitHub pages

Author: sunithapatel

.github/workflows/ci-build.yml

@@ -0,0 +1,31 @@
+name: Build & Deploy React App
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js 16.x
+      uses: actions/setup-node@v2
+      with:
+        node-version: '16.x'
+        cache: 'npm'
+    - name: Install npm packages
+      run: npm ci
+    - name: Build React App
+      run: npm run build --if-present
+    - name: Run Tests
+      run: npm test
+    - name: Deploy to GitHub Pages
+      run: |
+        git remote set-url origin https://git:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git
+        npm run deploy -u "github-actions-bot <[email protected]>"
+      if: ${{ github.ref == 'refs/heads/master' }} # only deploy master
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}