Update README.md

Author: yidas

README.md

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 PHP Paginator with Pager Widget (pure PHP, CI, Yii, Laravel support)
 
 [![Latest Stable Version](https://poser.pugx.org/yidas/pagination/v/stable?format=flat-square)](https://packagist.org/packages/yidas/pagination)
-[![Latest Unstable Version](https://poser.pugx.org/yidas/pagination/v/unstable?format=flat-square)](https://packagist.org/packages/yidas/pagination)
 [![License](https://poser.pugx.org/yidas/pagination/license?format=flat-square)](https://packagist.org/packages/yidas/pagination)
 
 Features