read env var as str

scripts/loaddjango.sh

@@ -12,7 +12,7 @@ python manage.py migrate eoa
 yes "y" | python manage.py makemigrations
 yes "y" | python manage.py migrate
 # Create superuser with pwd from env variable
-echo "from django.contrib.auth import get_user_model; User = get_user_model(); User.objects.filter(email='admin@example.com', is_superuser=True).delete(); User.objects.create_superuser('admin', 'admin@example.com',"$ADMIN_PWD")" | python manage.py shell
+echo "from django.contrib.auth import get_user_model; User = get_user_model(); User.objects.filter(email='admin@example.com', is_superuser=True).delete(); User.objects.create_superuser('admin', 'admin@example.com','"$ADMIN_PWD"')" | python manage.py shell
 
 # Import Bärnighausen file
 python manage.py tei_import -f baernighausen.xml