RHIDP-5494: Apply reviewer comment

Author: linfraze

modules/installation/proc-install-rhdh-airgapped-environment-ocp-operator.adoc

@@ -80,6 +80,8 @@ kubectl -n rhdh-operator get pods
 
 == Installing {product} in a fully disconnected environment with the Operator
 
+In environments without internet access — whether for security, compliance, or operational reasons — a fully disconnected installation ensures that {product} can run reliably without external dependencies.
+
 If your network has access to the registry through a bastion host, you can use the helper script to install {product} by mirroring the Operator-related images to disk and transferring them to your air-gapped environment without any connection to the internet.
 
 .Prerequisites