add google analytics

Author: jspann21

.github/workflows/deploy.yml

@@ -0,0 +1,24 @@
+name: Deploy GitHub Pages with Analytics
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+
+    - name: Inject Google Analytics
+      run: |
+        GA_SCRIPT="<script async src='https://www.googletagmanager.com/gtag/js?id=${{ secrets.GA_TRACKING_ID }}'></script><script>window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', '${{ secrets.GA_TRACKING_ID }}');</script>"
+        sed -i "s#</head>#${GA_SCRIPT}</head>#g" index.html
+
+    - name: Deploy to GitHub Pages
+      uses: peaceiris/actions-gh-pages@v3
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        publish_dir: ./