doc: add hint for openwebui key

Author: lennyStreavent

README.md

@@ -4,6 +4,7 @@
 
 ```bash
 git clone https://github.com/AET-DevOps25/team-git-push-force.git && cd team-git-push-force
+# Edit docker-compose.yml line 135: Replace 'your_api_token' with your actual OpenWebUI API token
 ./start-dev.sh
 ```
 
@@ -12,6 +13,8 @@ git clone https://github.com/AET-DevOps25/team-git-push-force.git && cd team-git
 - API Gateway at [http://localhost:8080](http://localhost:8080)  
 - Full stack running with real backend services
 
+> **Note:** Before running, edit `docker-compose.yml` line 135 and replace `your_api_token` with your actual OpenWebUI API token.
+
 ---
 
 ## Purpose