message: added aihello as superset user.
diff: @@ -168,6 +168,7 @@ Who uses Apache Superset (incubating)?
  Here's a list of organizations who have taken the time to send a PR to let
  the world know they are using Superset. Join our growing community!
  + - [AiHello](https://www.aihello.com)
  - [Airbnb](https://github.com/airbnb)
  - [Amino](https://amino.com)
  - [Brilliant.org](https://brilliant.org/)
  