omit server name when created with config

README.md

@@ -78,12 +78,13 @@ To provision an MLflow tracking server, set:
 ```yaml
 mlflow:
   mode: create
-  tracking_server_name: your-tracking-server-name
   experiment_name: qc-cli-training
   registered_model_name: qc-cli-model
   register_trained_models: true
 ```
 
+In `create` mode, the CLI manages the tracking server name from `infra.stack_name`.
+
 To use an existing MLflow tracking server, set:
 
 ```yaml