Update badges look'n'feel.

README.md

@@ -1,11 +1,11 @@
 [![Latest Stable Version](https://poser.pugx.org/drupol/phptree/v/stable)](https://packagist.org/packages/drupol/phptree)
- [![Total Downloads](https://poser.pugx.org/drupol/phptree/downloads)](https://packagist.org/packages/drupol/phptree)
+ [![Total Downloads](https://img.shields.io/packagist/dt/drupol/phptree.svg?style=flat-square)](https://packagist.org/packages/drupol/phptree)
  [![GitHub stars](https://img.shields.io/github/stars/drupol/phptree.svg?style=flat-square)](https://packagist.org/packages/drupol/phptree)
- [![Build Status](https://travis-ci.org/drupol/phptree.svg?branch=master)](https://travis-ci.org/drupol/phptree)
- [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/drupol/phptree/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/drupol/phptree/?branch=master)
- [![Code Coverage](https://scrutinizer-ci.com/g/drupol/phptree/badges/coverage.png?b=master)](https://scrutinizer-ci.com/g/drupol/phptree/?branch=master)
+ [![Build Status](https://img.shields.io/travis/drupol/phptree/master.svg?style=flat-square)](https://travis-ci.org/drupol/phptree)
+ [![Scrutinizer code quality](https://img.shields.io/scrutinizer/quality/g/drupol/phptree/master.svg?style=flat-square)](https://scrutinizer-ci.com/g/drupol/phptree/?branch=master)
+ [![Code Coverage](https://img.shields.io/scrutinizer/coverage/g/drupol/phptree/master.svg?style=flat-square)](https://scrutinizer-ci.com/g/drupol/phptree/?branch=master)
  [![Mutation testing badge](https://badge.stryker-mutator.io/github.com/drupol/phptree/master)](https://stryker-mutator.github.io)
- [![License](https://poser.pugx.org/drupol/phptree/license)](https://packagist.org/packages/drupol/phptree)
+ [![License](https://img.shields.io/packagist/l/drupol/phptree.svg?style=flat-square)](https://packagist.org/packages/drupol/phptree)
 
 # PhpTree