fix the failing test

Author: renetapopova

modules/ROOT/pages/configuration/configuration-settings.adoc

@@ -1699,7 +1699,7 @@ m|+++true+++
 |Description
 a|The load balancing plugin to use.
 |Valid values
-a|A string that specified load balancer plugin exist..
+a|A string.
 |Default value
 m|+++server_policies+++
 |===