DOC-13099 Fix docs typo

Change-Id: I6a6a636cca7678eae9793a34a7a9e26f7ddea149
Reviewed-on: https://review.couchbase.org/c/couchbase-cli/+/239221
Reviewed-by: Dan Owen <owend@couchbase.com>
Tested-by: Build Bot <build@couchbase.com>
Well-Formed: Restriction Checker

Author: matthallcb

docs/modules/cli/pages/cbcli/couchbase-cli-node-to-node-encryption.adoc

@@ -12,7 +12,7 @@ Changes node-to-node encryption
 == SYNOPSIS
 
 [verse]
-_couchbase-cli node-to-node-encryption_ [--cluster <url>] [-username <username>] [--password <password>]
+_couchbase-cli node-to-node-encryption_ [--cluster <url>] [--username <username>] [--password <password>]
     [--client-cert <path>] [--client-cert-password <password>] [--client-key <path>]
     [--client-key-password <password>] [--get] [--enable] [--disable]