Merge pull request #496 from DefangLabs/eric/n8n-readme-db-takes-time

Author: nullfunc

samples/n8n/README.md

@@ -68,10 +68,12 @@ Deploy your application to the Defang Playground by opening up your terminal and
 defang compose up
 ```
 
-### BYOC
+### BYOC (Deploy to you own AWS or GCP cloud account)
 
 If you want to deploy to your own cloud account, you can [use Defang BYOC](https://docs.defang.io/docs/tutorials/deploy-to-your-cloud).
 
+> [!WARNING]
+> **Extended deployment time:** This sample creates a managed PostgreSQL database which may take upwards of 20 minutes to provision on first deployment. Subsequent deployments are much faster (2-5 minutes).
 ---
 
 Title: n8n