Giving your microservices a REST

During browsing repository [livelesson-rest](https://github.com/livelessons-spring/building-microservices/tree/master/livelessons-rest) I've found there a broken link in description to another repository [Sync](https://github.com/livelessons-spring/building-microservices/blob/master/livelessons-rest/livelessons-rest-sync).
