Revert "nicole's changes"

This reverts commit fc38c32a820b23eeb6e448f5f05a4b07b35619ec.
Revert "Update index.html"

This reverts commit 31bb2ed3bbd166681fab5e025cf807f0c93b9263.
Revert "Update index.html"

This reverts commit 5a12e56de67de70034558e1ca5c75a08076dda0d.