cli: updated the deployment-overlay help content
cli: updated the deployment-overlay help content

was: 2c5057f8f8258f924b5aeed79d2d9e3385244b62

soul2zimate/wildfly-core,jamezp/wildfly-core,JiriOndrusek/wildfly-core,luck3y/wildfly-core,yersan/wildfly-core,darranl/wildfly-core,bstansberry/wildfly-core,luck3y/wildfly-core,luck3y/wildfly-core,aloubyansky/wildfly-core,ivassile/wildfly-core,yersan/wildfly-core,ivassile/wildfly-core,bstansberry/wildfly-core,aloubyansky/wildfly-core,soul2zimate/wildfly-core,darranl/wildfly-core,jfdenise/wildfly-core,jfdenise/wildfly-core,JiriOndrusek/wildfly-core,yersan/wildfly-core,bstansberry/wildfly-core,darranl/wildfly-core,JiriOndrusek/wildfly-core,jamezp/wildfly-core,jfdenise/wildfly-core,jamezp/wildfly-core,aloubyansky/wildfly-core,ivassile/wildfly-core,soul2zimate/wildfly-core