Set up GitHub Pages compatibility with new Gemfile and scripts

- Updated Gemfile for GitHub Pages compatibility, including necessary gems.
- Added Gemfile.github-pages for specific GitHub Pages dependencies.
- Created scripts to switch between GitHub Pages and local development setups.
- Introduced GitHub Actions workflow for building and deploying the Jekyll site to GitHub Pages.

switch-to-github-pages.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Script to switch to GitHub Pages compatible setup
+
+echo "Switching to GitHub Pages compatible setup..."
+
+# Backup current Gemfile
+cp Gemfile Gemfile.local-dev
+
+# Use GitHub Pages compatible Gemfile
+cp Gemfile.github-pages Gemfile
+
+echo "✅ Switched to GitHub Pages compatible setup"
+echo "📝 Your local development Gemfile has been backed up as Gemfile.local-dev"
+echo ""
+echo "To switch back to local development:"
+echo "  cp Gemfile.local-dev Gemfile"
+echo "  bundle install"
+echo ""
+echo "To deploy to GitHub Pages:"
+echo "  git add ."
+echo "  git commit -m 'Update for GitHub Pages'"
+echo "  git push origin main"