Add minimal test user info

README.md

@@ -295,7 +295,25 @@ graphql schema.
 - What about the generated types from `codegen`? Hand written types seem to be better.
 - The functions in `cacheExchange` should be nearer the concrete implementation...
 
-## Load prod data for testing
+## Test users
+### Local development
+If `prepare_server.sh` was run, the following users are available (password: `test` and found in `create_default_users.py`):
+
+- Trainer
+  - test-trainer1@example.com
+  - test-trainer2@example.com 
+- Teilnehmer
+  - test-student1@example.com 
+  - test-student2@example.com 
+  - test-student3@example.com 
+- Regionenleiter
+  - test-supervisor1@example.com 
+- Berufsbildner
+  - test-berufsbildner1@example.com
+- Ausbildungsverantwortlicher
+  - test-ausbildungsverantwortlicher1@example.com
+
+### Load prod data for local testing
 
 1. Checkout the [vbv-devops](https://bitbucket.org/iterativ/iterativ-devops/src/master/) repository
 2. Change into the `backups` directory
@@ -306,3 +324,6 @@ graphql schema.
     for csu in CourseSessionUser.objects.all():
         csu.user.set_password("test")
    ```
+### Test users on production
+On production there are CourseSessions in the VV and üK courses with test users. The data can be rested via the admin
+interface ("Iterativ Testdurchführungen zurücksetzen"). All users use local login and can be found in 1password.