Broken link in product-review-agent use case example

[vsnyc]

The product-review-agent example references a link:
https://jmcauley.ucsd.edu/data/amazon_v2/categoryFilesSmall/All_Beauty_5.json.gz that no longer works.

The updated link is:
https://mcauleylab.ucsd.edu/public_datasets/data/amazon_v2/categoryFilesSmall/All_Beauty_5.json.gz

I found this out by navigating to Professor Julian McAuley's website (https://cseweb.ucsd.edu/~jmcauley/) and following his link to datasets.