Added badges, updated user guide.

Author: janithb

README.md

@@ -1,10 +1,12 @@
+[![Build Status](https://travis-ci.org/audit4j/audit4j-db.svg?branch=master)](https://travis-ci.org/audit4j/audit4j-db) [![Maven Central](https://maven-badges.herokuapp.com/maven-central/org.audit4j/audit4j-db/badge.svg)](https://maven-badges.herokuapp.com/maven-central/org.audit4j/audit4j-db)
+
 Audit4j Database Handler.
 ==================
 
-Database audit handler supports to capture audit records with popular databases(MySQL, Oracle, etc.). HSQLDB is embedded in to the database audit handler, so you can integrate it without configuring any other database
+Database audit handler supports to capture audit records with popular databases(MySQL, Oracle, etc.). HSQLDB is embedded in to the database audit handler, so you can integrate it without configuring any other database (But we don't recommend doing it).
 
 For more information please visit: http://audit4j.org
 
-For usage, api-guide and development please visit: http://audit4j.org/integration-spring
+For usage, api-guide and development please visit: http://audit4j.org/handler-db
 
 For contribute, please visit: http://audit4j.org/development