fix: docker compose setup instruction

Author: Giuseppe De Marco

Docker-compose/README.md

@@ -27,7 +27,9 @@ For docker-compose you can also [see here](https://docs.docker.com/compose/insta
 
 ## Run the composition
 
-Copy the folder `example` to `docker-example` and do your configuration.
+1. Copy/pull Satosa-Saml2Spid project locally.
+2. Copy the folder `example` to a new folder named `docker-example`
+3. Inspect the `docker-example` folder content and do your configuration.
 
 > :warning: **DO NOT USE the `example` folder _as is_ in production**: the `example` folder provides secrets that **MUST** be not used in a production environment. It sole purpose is to provide a user friendly starting point.