Add a deprecation message

Signed-off-by: Richard Wall <richard.wall@cyberark.com>

Author: wallrj-cyberark

global-csv-config.yaml

@@ -14,9 +14,13 @@
 # incremented or where new fields need to be added to the CRD samples for
 # certain cert-manager versions.
 
-display_name: cert-manager
+display_name: "[DEPRECATED] cert-manager"
 
 description: |
+  DEPRECATED
+  This cert-manager community operator is deprecated.
+  Read the [cert-manager 1.16 release notes](https://cert-manager.io/docs/releases/release-notes/release-notes-1.16) to learn more.
+
   cert-manager is a Kubernetes add-on to automate the management and issuance of TLS certificates from various issuing sources.
   It will ensure certificates are valid and up to date periodically, and attempt to renew certificates at an appropriate time before expiry.