Note for oc-mirror v1 deprecation

oc mirror v1 deprecation

Update disconnected/mirroring/installing-mirroring-disconnected.adoc

Co-authored-by: Servesha Dudhgaonkar <49194531+xenolinux@users.noreply.github.com>

Author: diksha1999

disconnected/mirroring/installing-mirroring-disconnected.adoc

@@ -10,6 +10,11 @@ Running your cluster in a restricted network without direct internet connectivit
 
 You can use the oc-mirror OpenShift CLI (`oc`) plugin to mirror images to a mirror registry in your fully or partially disconnected environments. You must run oc-mirror from a system with internet connectivity in order to download the required images from the official Red Hat registries.
 
+[IMPORTANT]
+====
+The oc-mirror plugin v1 is now deprecated. Transition to the xref:../../disconnected/mirroring/about-installing-oc-mirror-v2.adoc#installation-oc-mirror-v2-about_about-installing-oc-mirror-v2[oc-mirror plugin v2] for continued support and improvements.
+====
+
 // About the oc-mirror plugin
 include::modules/oc-mirror-about.adoc[leveloffset=+1]