Update compose.yaml

compose.yaml

@@ -9,7 +9,7 @@ services:
     ports:
       - "8585:80"
     environment:
-      DATABASE_URL: "postgres://tirreno:secret@tirreno-db:5432/tirreno"
+      DATABASE_URL: "postgres://tirreno:${secret}@tirreno-db:5432/tirreno"
       SITE: "localhost:8585"
       FORCE_HTTPS: "false"
     volumes: