Update README

Better solution to create superuser admin

README.md

@@ -31,12 +31,4 @@ SECRET_KEY = 'what you want'
 When you'll run `python manage.py migrate` then `python manage.py runserver`, an empty database will be automatically created.  
 The `local_settings.py` is in the `.gitignore` and should stay that way, so we don't accidentally overwrite the production file when we deploy.
 
-To obtain administrator rights you must create a user on the platform. Then you can run `python manage.py shell` and type the following commands:
-```
-from django.contrib.auth.models import User
-user = User.objects.get(username="<your_username>")
-user.is_staff = True
-user.is_admin = True
-user.is_superuser = True
-user.save()
-```
+To obtain administrator rights you can run `python manage.py createsuperuser`.