modify readme .

Author: 刘松

README.md

@@ -15,13 +15,17 @@ var Falcon = require('node-open-falcon');
 var falcon = new Falcon({
   endpoint: os.hostname()
 });
+
 //
-var usage = process.memoryUsage();
-for(var key in usage){
-  falcon.metric('memory.' + key, usage[key]).end();
-}
+setInterval(function(){
+
+  var usage = process.memoryUsage();
+  for(var key in usage){
+    falcon.metric('memory.' + key, usage[key]).end();
+  }
+  falcon.send();
 
-falcon.send();
+});
 ```
 
 ### API

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "node-open-falcon",
+  "name": "@myfe/open-falcon",
   "version": "1.0.1",
   "description": "open-falcon",
   "main": "index.js",