Update README.adoc
Update README.adoc

Mention the issue tracker
jpkrohling/hawkular-command-gateway,hawkular/hawkular-command-gateway,rubenvp8510/hawkular-command-gateway,jpkrohling/hawkular-bus,hawkular/hawkular-command-gateway,ppalaga/hawkular-command-gateway,rubenvp8510/hawkular-command-gateway,ppalaga/hawkular-command-gateway,jpkrohling/hawkular-command-gateway,lucasponce/hawkular-bus,lucasponce/hawkular-bus,tsegismont/hawkular-bus,hawkular/hawkular-bus