Update configuration.adoc (#946)

Default loggingDatabase is logs not neo4j, updated same in document.

Issue Closed : #915

Document Referred : 
https://github.com/neo4j-labs/neodash/blob/42b196a3ec9a1d5740e4c81420a762646b1295b7/scripts/config-entrypoint.sh#L26
https://neo4j.com/labs/neodash/2.4/developer-guide/configuration/#_configuration_options

Signed-off-by: Singh, Jyotsana <Jyotsana.Singh@fmr.com>

Author: Jyots6914

docs/modules/ROOT/pages/developer-guide/configuration.adoc

@@ -133,7 +133,7 @@ must be granted to enble any user to create logs.
 
 ⚠️ * Load/Save from/to file are not logged (only from/to Database)   
 
-|loggingDatabase |string |neo4j |When loggingMode is set to anything 
+|loggingDatabase |string |logs |When loggingMode is set to anything 
 else than '0', the database to use for logging. Log records (nodes)
 will be created in this database.