Correcting the channel name for specific version operator installation example

Author: alokstech

modules/olm-installing-specific-version-cli.adoc

@@ -186,7 +186,7 @@ metadata:
   name: quay-operator
   namespace: quay
 spec:
-  channel: quay-operator.v3.7.10
+  channel: stable-3.7
   installPlanApproval: Manual <1>
   name: quay-operator
   source: redhat-operators