Update content/en/altinity-kb-setup-and-maintenance/altinity-kb-zookeeper/clickhouse-keeper.md

Co-authored-by: SaltTan <20357526+SaltTan@users.noreply.github.com>

Author: realyota

content/en/altinity-kb-setup-and-maintenance/altinity-kb-zookeeper/clickhouse-keeper.md

@@ -74,7 +74,7 @@ In clickhouse-keeper-client, paths are now parsed more strictly and must be pass
 
 ## Example of a simple cluster
 
-Keeper quorum size must be odd. A 2-node Keeper layout will lose quorum after a single node failure, so the recommended replicas for Keeper is 3. 
+The Keeper ensemble size must be odd because it requires a majority (50% + 1 nodes) to form a quorum. A 2-node Keeper setup will lose quorum after a single node failure, so the recommended number of Keeper replicas is 3.
 
 On `hostname1` and `hostname2` below, ClickHouse can use the embedded Keeper cluster from `<keeper_server>`, so a separate client-side `<keeper>` section is not required. If your ClickHouse servers connect to an external Keeper or ZooKeeper ensemble, see [ClickHouse config for Keeper]({{< ref "clickhouse-keeper-clickhouse-config" >}}).