doc(object-storage): note that the controller uses the minio-user secret even if not using minio

Author: Aaron Schlesinger

src/installing-workflow/configuring-object-storage.md

@@ -100,7 +100,7 @@ The controller needs no environment variables for object storage configuration.
 
 ### Credentials
 
-Since the object storage location information comes from the builder, the controller only needs access to the credentials information. The controller gets this information by accessing the `minio-user` secret directly from the Kubernetes API.
+Since the object storage location information comes from the builder, the controller only needs access to the credentials information. The controller gets this information by accessing the `minio-user` secret (even if it's not using Minio as the object storage system) directly from the Kubernetes API.
 
 No paths need to be mounted into the pod. Simply ensure that the secret exists in your Kubernetes cluster with the correct credentials.