Update README.md

Former-commit-id: 90074a54e02afe85e997f958661db7de95d2b285
Former-commit-id: 1af0d3038ef0f54247974fdb476f6aca8261b281

Author: Nick2781

README.md

@@ -4,7 +4,7 @@
 [![Build Status](https://travis-ci.org/ArkGame/ArkGameFrame.svg?branch=master)](https://travis-ci.org/ArkGame/ArkGameFrame)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 [![Platform](https://img.shields.io/badge/platform-Linux,%20Windows-green.svg?style=flat)](https://github.com/ArkGame/ArkGameFrame)
-[![Gitter chat](https://badges.gitter.im/gitterhq/node-gitter.png)](https://gitter.im/ArkGame/Lobby)
+[![Gitter chat](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/ArkGame/Lobby)
 <br><br>
 **Copyright © [ARK Game](https://arkgame.net "ARK Game")**
 <br><br>
@@ -162,4 +162,4 @@ View our [lastest plan](https://github.com/ArkGame/ArkGameFrame/blob/master/Docs
 
 #### The relationship with NF
 
-This branch come from [NF](https://github.com/ketoo/NoahGameFrame), we used to be the **CORE DEVELOPERS** of NF. We create **ArkGameFrame** because some different design philosophies, through our new ideas and modifications, now this project is a fresh project which has many different features.
+This branch come from [NF](https://github.com/ketoo/NoahGameFrame), we used to be the **CORE DEVELOPERS** of NF. We create **ArkGameFrame** because some different design philosophies, through our new ideas and modifications, now this project is a fresh project which has many different features.