set branch path

Author: stefafafan

.github/workflows/branch-preview.yaml

@@ -47,11 +47,17 @@ jobs:
       run: |
         php phd/render.php --docbook doc-base/.manual.xml --package PHP --format xhtml
 
+    - name: Add Pull Request Path
+      run: |
+        PR_NUMBER=${{ github.event.pull_request.number }}
+        mkdir -p ./output/pr/$PR_NUMBER
+        mv ./output/php-chunked-xhtml/* ./output/pr/$PR_NUMBER/
+
     - name: Upload static files as artifact
       id: deployment
       uses: actions/upload-pages-artifact@v3
       with:
-        path: output/php-chunked-xhtml/
+        path: ./output/
 
   deploy:
     permissions: