Style fixes

Author: akarasavov

modules/ROOT/pages/clustering/setup/discovery.adoc

@@ -433,9 +433,9 @@ dbms.cluster.discovery.v2.endpoints=server01.example.com:6000,server02.example.c
 +
 . In Cypher Shell, connect to the `system` database of any server
 +
-[source,cypher]
+[source, shell, role=nocopy noplay]
 ----
-./cypher-shell -a bolt://localhost:7683 -d system
+./cypher-shell -a bolt://localhost:7681 -d system
 ----
 . Run the procedure:
 +
@@ -444,7 +444,7 @@ dbms.cluster.discovery.v2.endpoints=server01.example.com:6000,server02.example.c
 CALL dbms.cluster.showParallelDiscoveryState();
 ----
 +
-The output indicates mode `V1_ONLY`, i.e., only v1 is running on this server.
+The output indicates mode `V1_ONLY`, i.e., only `V1` is running on this server.
 +
 .Expected result
 [queryresult]
@@ -520,7 +520,7 @@ CALL internal.dbms.cluster.moveToNextDiscoveryVersion();
 CALL dbms.cluster.showParallelDiscoveryState();
 ----
 +
-Note that stateComparison is `N/A` because you do not have v1 to compare states anymore.
+Note that stateComparison is `N/A` because you do not have `V1` to compare states anymore.
 +
 .Expected result
 [queryresult]