update preview with debug

.github/preview.yml

@@ -9,7 +9,7 @@ jobs:
   build-preview:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3 # Updated to v3
 
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
@@ -22,11 +22,27 @@ jobs:
           bundle install
 
       - name: Build site
-        run: bundle exec jekyll build
+        run: bundle exec jekyll build --verbose
+
+      - name: List built files
+        run: |
+          echo "Contents of _site directory:"
+          ls -R _site
 
       - name: Deploy preview
         uses: peaceiris/actions-gh-pages@v3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./_site
           destination_dir: preview/${{ github.ref_name }}
+
+      - name: Debug - List gh-pages branch
+        run: |
+          git fetch origin gh-pages:gh-pages
+          git checkout gh-pages
+          echo "Contents of preview directory:"
+          ls -R preview
+
+      - name: Print preview URL
+        run: |
+          echo "Preview should be available at: https://shacharmirkin.github.io/preview/${{ github.ref_name }}/"