message: Update docker-init.sh
  Fix typo of
  ```bash
  superset load-examples
  ```
diff: @@ -9,7 +9,7 @@ fabmanager create-admin --app superset
  superset db upgrade
  # Load some data to play with
  -superset load_examples
  +superset load-examples
  # Create default roles and permissions
  superset init
  