Update HTML index creation to use new script.

Author: hodgestar

.github/workflows/notebook_ci.yaml

@@ -149,7 +149,8 @@ jobs:
           cd ..
 
           # build the website
-          python create_index.py
+          python create_index.py html v5 index.html
+          python create_index.py html v4 index-v4.html
           bundle config path .gems
           bundle install
           bundle exec jekyll build