add caddy networking

docker-compose.meal.yml

@@ -10,6 +10,13 @@ services:
     environment:
       - SECRET_KEY=${SECRET_KEY:-change-me-in-production}
     restart: unless-stopped
+    container_name: meal-tracker
+    networks:
+      - caddy: {}
 
 volumes:
   meal-data:
+
+networks:
+  caddy:
+    external: true