feat: add GitHub Actions workflow for Jekyll site deployment

Author: roshan-raj

.github/workflows/on-merge.yml

@@ -0,0 +1,32 @@
+name: Github Pages Deploy
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.1 # Specify the Ruby version compatible with Jekyll
+          bundler-cache: true
+
+      - name: Install dependencies
+        run: bundle install
+
+      - name: Build Jekyll site
+        run: bundle exec jekyll build --destination dist
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: jekyll-build
+          path: dist