[OBSDOCS-2668] Update deleting-the-clusterlogging-instance.adoc

Underscore sign is missing from the documentation
Here is the documentation link:
https://docs.redhat.com/en/documentation/red_hat_openshift_logging/6.3/html/upgrading_logging/upgrading-to-logging-6#deleting-the-clusterlogging-instance_upgrading-to-logging-6
Current Look:

Delete the ClusterLogging instance.
$ oc delete clusterlogging <CR name> -n <namespace>
Here, the underscore sign is missing from`<CR name>`
As per the standard rule, such values should be separated with `underscore` sign.
Hence, we need to sign between these values. Like <CR_name>
Updated Look:

Delete the ClusterLogging instance.
$ oc delete clusterlogging <CR_name> -n <namespace>
This is the correct format.

[New] Update modules/deleting-the-clusterlogging-instance.adoc

- Underscore sign is missing from the documentation
- Here is the documentation link:
https://docs.redhat.com/en/documentation/red_hat_openshift_logging/6.3/html/upgrading_logging/upgrading-to-logging-6#deleting-the-clusterlogging-instance_upgrading-to-logging-6

Current Look:

- Delete the ClusterLogging instance.
~~~
$ oc delete clusterlogging <CR name> -n <namespace>
~~~

- Here, the underscore sign is missing from`<CR name>`
- As per the standard rule, such values should be separated with `underscore` sign.
- Hence, we need to sign between these values. Like <CR_name>

Updated Look:

- Delete the ClusterLogging instance.
~~~
$ oc delete clusterlogging <cr_name> -n <namespace>
~~~

This is the correct format.

Co-authored-by: Jeana Routh <61474374+jeana-redhat@users.noreply.github.com>

Author: 2 people

modules/deleting-the-clusterlogging-instance.adoc

@@ -16,7 +16,7 @@ Delete the ClusterLogging instance because it is no longer needed in Logging 6.x
 +
 [source,terminal]
 ----
-$ oc delete clusterlogging <CR name> -n <namespace>
+$ oc delete clusterlogging <cr_name> -n <namespace>
 ----
 
 .Verification