DOC-13711 Fix bucket-list docs

Change-Id: I4db60b2ba5478f69537446cc31a58aa23c316436
Reviewed-on: https://review.couchbase.org/c/couchbase-cli/+/236318
Tested-by: Build Bot <build@couchbase.com>
Well-Formed: Restriction Checker
Reviewed-by: Matt Hall <matt.hall@couchbase.com>

Author: safianalicb

docs/modules/cli/pages/cbcli/couchbase-cli-bucket-list.adoc

@@ -50,6 +50,7 @@ $ couchbase-cli bucket-list -c 192.168.1.5:8091 --username Administrator \
    ramQuota: 268435456
    ramUsed: 1134432
    vBuckets: 1024
+----
 == DISCUSSION
 
 In the output, RAM figures are in bytes. The "membase" bucketType signifies a