message: Fix typo in Start with Docker
diff: @@ -50,7 +50,7 @@ initialize development environment: ::
  docker-compose exec superset bash
  bash docker-init.sh
  -After several minutes for sueprset initialization to finish, you can open a
  +After several minutes for superset initialization to finish, you can open
  a browser and view `http://localhost:8088` to start your journey.
  Or if you're curious and want to install superset from bottom up, then go
  