diff --git a/README.md b/README.md
index c0d4b13..66ea299 100644
--- a/README.md
+++ b/README.md
@@ -88,6 +88,9 @@ Common Options:
 ### Cluster
 ```bash
  1, start router for hmq  (https://github.com/fhmq/router.git)
+ 	$ go get github.com/fhmq/router
+ 	$ cd $GOPATH/github.com/fhmq/router
+ 	$ go run main.go
  2, config router in hmq.config  ("router": "127.0.0.1:9888")
  
 ```
diff --git a/broker/config.go b/broker/config.go
index 13cfc0d..eea8b84 100644
--- a/broker/config.go
+++ b/broker/config.go
@@ -100,7 +100,6 @@ func ConfigureConfig(args []string) (*Config, error) {
 	fs.Visit(func(f *flag.Flag) {
 		switch f.Name {
 		case "D":
-			// Check value to support -DV=false
 			config.Debug = true
 		}
 	})