Add Bookmark and CSV instructions to Help

[emilyobvs]

Now that bookmarking and CSV download functionality is in prod, we need to add directions in the Help Page.

I created the instructions and Anna has had an initial look over it. Her feedback has been incorporated:
https://wpi0.sharepoint.com/:w:/s/gr-hyrax-wg/EY_9aVrkqEVBlepJ1YQEf9cBtshbb_apbhhsZV3BfNX5Zw?e=haGWDJ

See email chain "Adding CSV Download and Bookmarking instructions to Hyrax" for more info.

[emilyobvs]

Doc has been updated - https://wpi0.sharepoint.com/:w:/s/gr-hyrax-wg/EY_9aVrkqEVBlepJ1YQEf9cBtshbb_apbhhsZV3BfNX5Zw?e=K15W6V

Derek will work to add this in test before deploying changes to prod.

[emilyobvs]

Derek deployed to prod.