Update deploy.yml

verified the build output and deploy without "first deployment" logic

Author: kthood

.github/workflows/deploy.yml

@@ -34,9 +34,18 @@ jobs:
         run: |
           jupyter-book build book
 
+      # Debug build output
+      - name: Debug build output
+        run: |
+          ls -la book
+          ls -la book/_build || true
+          ls -la book/_build/html || true
+
       # Deploy the book's HTML to gh-pages branch
       - name: GitHub Pages action
         uses: peaceiris/actions-gh-pages@v3.6.1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_branch: gh-pages
           publish_dir: book/_build/html
+          force_orphan: true