update example command in readme

Author: i-norden

statediff/README.md

@@ -100,7 +100,7 @@ The service can only operate in full sync mode (`--syncmode=full`), but only the
 
 e.g.
 `
-./build/bin/geth --syncmode=full --gcmode=archive --statediff --statediff.writing --statediff.db=postgres://localhost:5432/vulcanize_testing?sslmode=disable --statediff.dbnodeid={nodeId} --statediff.dbclientname={dbClientName}
+./build/bin/geth --syncmode=full --gcmode=archive --statediff --statediff.writing --statediff.db.type=postgres --statediff.db.driver=sqlx --statediff.db.host=localhost --statediff.db.port=5432 --statediff.db.name=vulcanize_test --statediff.db.user=postgres --statediff.db.nodeid=nodeid --statediff.db.clientname=clientname
 `
 
 ### RPC endpoints

statediff/service.go

@@ -306,6 +306,7 @@ func (sds *Service) writeLoopWorker(params workerParams) {
 
 // Loop is the main processing method
 func (sds *Service) Loop(chainEventCh chan core.ChainEvent) {
+	log.Info("Starting statediff listening loop")
 	chainEventSub := sds.BlockChain.SubscribeChainEvent(chainEventCh)
 	defer chainEventSub.Unsubscribe()
 	errCh := chainEventSub.Err()