Add note about extra parameters

docs/configuration/batch-users.md

@@ -46,3 +46,22 @@ It is also possible to delete the users from the same CSV definition, using the
 ```sh
 ansible-playbook student-remove.yml -u ubuntu -e "studentdef=students.csv"
 ```
+
+````{note}
+It is possible to pass additional parameters when creating users in batches.
+
+For example if you have a file defining disk quotas for a group of students:
+
+```yaml
+# default quotas for students
+quota:
+  soft: 200G
+  hard: 250G
+```
+
+You can run the playbook to reference that extra file:
+
+```bash
+ansible-playbook student-create.yml -u ubuntu -e "studentdef=students.csv" -e @students-config.yml
+```
+````