Update README.md

Author: liangliangyy

README.md

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 基于`python3.5`和`Django1.10`的博客。   
 
-[![Build Status](https://travis-ci.org/liangliangyy/DjangoBlog.svg?branch=master)](https://travis-ci.org/liangliangyy/DjangoBlog)    
+[![Build Status](https://travis-ci.org/liangliangyy/DjangoBlog.svg?branch=master)](https://travis-ci.org/liangliangyy/DjangoBlog) [![Coverage Status](https://coveralls.io/repos/github/liangliangyy/DjangoBlog/badge.svg?branch=master)](https://coveralls.io/github/liangliangyy/DjangoBlog?branch=master)    
 
 ## 安装
 使用pip安装：