README.md

@@ -32,6 +32,12 @@ Searching with filters such as:
 | Name         | `string`      | textfield  |
 | Category     | `Category`    | dropdown   |
 
+## Setup
+When deploying, don't forget to pull the PLZ index and save it to the database using
+```
+python manage.py getplzindex --force
+```
+
 ## Development
 To get started with development, see [DEVELOPMENT.md](DEVELOPMENT.md)