Added badge for license

Author: grogy

CHANGELOG.md

@@ -9,6 +9,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Added
 
 - Added downloading per month badge from [@grogy](https://github.com/grogy).
+- Added license badge from [@grogy](https://github.com/grogy).
 
 ## [0.3] - 2020-05-14
 

README.md

@@ -3,6 +3,7 @@ PHP Console Color
 
 [![Downloads this Month](https://img.shields.io/packagist/dm/php-parallel-lint/php-console-color.svg)](https://packagist.org/packages/php-parallel-lint/php-console-color)
 [![Build Status](https://travis-ci.org/php-parallel-lint/PHP-Console-Color.svg?branch=master)](https://travis-ci.org/php-parallel-lint/PHP-Console-Color)
+[![License](https://poser.pugx.org/php-parallel-lint/php-console-color/license.svg)](https://packagist.org/packages/php-parallel-lint/php-console-color)
 
 Simple library for creating colored console ouput.