Who uses Aleph? Add your name to this, we'd like to know

I'm thinking about putting together a list of users/companies in the README to showcase. (Testimonials cool, too. 😉)

Start by reviewing the README to identify an appropriate place and format for a list of Aleph users or companies. Confirm which users are willing to be named and whether testimonials are available; the work is done when the agreed user information is added to the README.

Written by the indexing model from the issue text.