Update GitHub Actions to trigger on dev branch and deploy to gh-pages

Author: awwal-badru

.github/workflows/deploy.yml

@@ -0,0 +1,19 @@
+name: Deploy to GitHub Pages
+on:
+  push:
+    branches: [ dev ]  # Trigger on dev branch pushes
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.1
+          bundler-cache: true
+      - run: bundle exec jekyll build
+      - uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./_site
+          publish_branch: gh-pages