Merge pull request openshift#6284 from bmcelvee/dedicated-3.7-stage

[dedicated-3.7] update-ca-trust followed by a restart of master

Author: bmcelvee

dev_guide/managing_images.adoc

@@ -982,7 +982,8 @@ running the registry import controller (typically the master node).
 
 The certificate or CA certificate must be added to `/etc/pki/tls/certs` or `/etc/pki/ca-trust`,
 respectively, on the host system. The `update-ca-trust` command will also need to be
-run on Red Hat distributions to pick up the certificate changes.
+run on Red Hat distributions followed by a restart of the master service to pick up
+the certificate changes.
 
 
 [[importing-images-across-projects]]