modify readme

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")
  
 ```

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
 		}
 	})