update readme.md

Author: Lision

README.md

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 > [中文介绍](https://github.com/Lision/WKWebViewJavascriptBridge/blob/master/README_ZH-CN.md)
 
+> This project is inspired by [WebViewJavascriptBridge](https://github.com/marcuswestin/WebViewJavascriptBridge)!
+
 # What Can WKWebViewJavascriptBridge Do?
 
 You can write hybrid moudles in just a few lines of code by use WKWebViewJavascriptBridge without need to be concerned with the underlying messaging implementation.

README_ZH-CN.md

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 [![Build Status](https://api.travis-ci.org/Lision/WKWebViewJavascriptBridge.svg?branch=master)](https://travis-ci.org/Lision/WKWebViewJavascriptBridge) 
 [![CocoaPods](https://img.shields.io/cocoapods/v/WKWebViewJavascriptBridge.svg?style=flat)](http://cocoapods.org/pods/WKWebViewJavascriptBridge)
 
+> 此项目基于 [WebViewJavascriptBridge](https://github.com/marcuswestin/WebViewJavascriptBridge)，在其上仅对 WKWebView 提供支持，由 Swift 实现！
+
 # WKWebViewJavascriptBridge 能为你做什么?
 
 您可以通过使用 WKWebViewJavascriptBridge 书写几行代码实现混合模块，而无需关心底层的消息传递实现。