[jboss-jira] [JBoss JIRA] (DROOLS-4363) Improve the comprehensive Readme

Improve the comprehensive Readme --------------------------------- Key: DROOLS-4363 URL: https://issues.jboss.org/browse/DROOLS-4363 Project: Drools Issue Type: Task Reporter: Massimiliano Dessi Assignee: Massimiliano Dessi Priority: Major Labels: HADrools Improve the readme in the @TODO sections , with feedbacks and with a Drools sections Add description about how to user DroolsExecutor to wrap side effects and guarantee that are executed only by the leader