Add clarification about topic for add_secrets script

Author: Tamas Pallos

README.md

@@ -102,7 +102,10 @@ steps:
 
 ### add_secrets.py
 
-Adds robot users hsl-id e-mail and password to all jore4 repositories.
+Adds robot users hsl-id e-mail and password to jore4 repositories which have
+`jore4` added as
+[topic](https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/classifying-your-repository-with-topics#about-topics).
+
 Uses file named `test_users.json` as input for user details. This file should be created by changing placeholder values in `tests_users_template.json` to correct passwords and e-mails, these can be found from the hsl-jore4-common key-vault as secrets.
 After the script is run the secrets can be found by going to repositorys `Settings` page in github and then selecting `Secrets` tab. There should be now secrets named `ROBOT_HSLID_EMAIL` and `ROBOT_HSLID_PASSWORD` and they should show that they have been updated when you ran the script.