more dev feedback

Author: jc-berger

global_hub/global_hub_upgrade_postgres.adoc

@@ -64,10 +64,21 @@ git clone https://github.com/stolostron/multicluster-global-hub.git
 [#deleting-legacy-postgres]
 == Deleting legacy built-in Postgres data
 
-After {global-hub} upgrades to version 1.4.0, it switches to the new built-in Postgres instance. The global hub operator does not automatically delete resources associated with the legacy Postgres instance. To delete the legacy Postgres resources, run the following script: 
+After {global-hub} upgrades to version 1.4.0, it switches to the new built-in Postgres instance. The global hub operator does not automatically delete resources associated with the legacy Postgres instance. To delete the legacy Postgres resources, complete the following steps:
 
+. If the default namespace is `multicluster-global-hub`, run the following shell script: 
 
++
 [source,bash]
 ----
 ./doc/upgrade/cleanup_legacy_postgres.sh
-----
+----
+
+. If the namespace is not specified as `multicluster-global-hub`, set the {global-hub} namespace when you run the following shell script: 
+
++
+[source,bash]
+----
+./doc/upgrade/cleanup_legacy_postgres.sh <1>
+----
+<1> The {global-hub} that you installed.