Clarify instructions for development setup

• Remind user to activate virtualenv
• Point to backend instead of frontend (which is empty in a new installation)

README.md

@@ -20,9 +20,14 @@ This repository contains a Django project called AKPlanning. The functionality i
 
 ## Setup instructions
 
-See [INSTALL.md](INSTALL.md).
+See [INSTALL.md](INSTALL.md) for detailed instructions on development and production setups.
+
+To update the setup to the current version on the main branch of the repository use the update script ``Utils/update.sh`` or ``Utils/update.sh --prod`` in production.
+
+Afterwards, you may check your setup by executing ``Utils/check.sh`` or ``Utils/check.sh --prod`` in production.
+
 
 
 ## Developer Notes
 * to regenerate translations use ````python manage.py makemessages -l de_DE --ignore venv````
-* to create a data backup use ````python manage.py dumpdata --indent=2 > db.json --traceback````
+* to create a data backup use ````python manage.py dumpdata --indent=2 > db.json --traceback````
\ No newline at end of file