Precisions on superuser

README.md

@@ -73,6 +73,10 @@ import some base data to play with:
     python manage.py createsuperuser
     python manage.py loaddata offers ip_pool
 
+Note that the superuser will be inserted into the LDAP backend exactly in the
+same way as all other members, so you should use a real account (not just
+admin/admin).
+
 Then, at each code update, you only need to apply migrations:
 
     python manage.py migrate