Update README.md

Author: wujunze

README.md

@@ -3,12 +3,11 @@ Simple and easy to use the PHP command-line output of color
 
 
 
-<p align="center">
-<a href="https://travis-ci.org/wujunze/php-cli-color"><img src="https://travis-ci.org/wujunze/php-cli-color.svg?branch=master" alt="Build Status"></a>
-</p>
+[![Build Status](https://travis-ci.org/wujunze/php-cli-color.svg?branch=master)](https://travis-ci.org/wujunze/php-cli-color)
+
 ## Installation
 
-`composer require wujunze/php-cli-color '~1.0'`
+`composer require wujunze/php-cli-color`
 
 ## How to use
 ```php
@@ -28,4 +27,4 @@ echo $colors->getColoredString("Testing Colors class, this is default string on
 
 ## run result
 
-![code run result](https://camo.githubusercontent.com/5509dd50a0f9fb194a6bc2a36153934e3d74e1d9/687474703a2f2f7777342e73696e61696d672e636e2f6c617267652f303036306c6d3754677931666470747672373062646a33306e6c3037327a6c642e6a7067)
+![code run result](https://camo.githubusercontent.com/5509dd50a0f9fb194a6bc2a36153934e3d74e1d9/687474703a2f2f7777342e73696e61696d672e636e2f6c617267652f303036306c6d3754677931666470747672373062646a33306e6c3037327a6c642e6a7067)