Fix the default value

Author: NataliaIvakina

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

@@ -1722,7 +1722,7 @@ a|The default language of a database determines which language is used to evalua
 |Valid values
 a|One of [CYPHER_5, CYPHER_25] that the [CYPHER_25] values acceptance depend on 'internal.dbms.cypher.enable_experimental_versions'.
 |Default value
-m|+++Cypher5+++
+m|+++CYPHER_5+++
 |===