Merge pull request #14448 from bergerhoffer/BZ-1698470

BZ-1698470: Clarified the state of service catalog's custom resources

Author: bergerhoffer

modules/sb-install-service-catalog.adoc

@@ -7,6 +7,11 @@
 
 If you plan on using any of the services from the {asb-name} or {tsb-name}, you must install the service catalog by completing the following steps.
 
+The custom resources for the service catalog's API server and controller manager
+are created by default in {product-title}, but initially have a
+`managementState` of `Removed`. To install the service catalog, you must change
+the `managementState` for these resources to `Managed`.
+
 .Procedure
 
 . Enable the service catalog API server.