Merge pull request #21 from RobDWaller/2.0.1

Fixed PHP support badge in README and added downloads badge.

README.md

@@ -1,5 +1,5 @@
 # PSR Compliant JSON Web Token Middleware
-[![Build Status](https://travis-ci.org/RobDWaller/psr-jwt.svg?branch=master)](https://travis-ci.org/RobDWaller/psr-jwt) [![codecov](https://codecov.io/gh/RobDWaller/psr-jwt/branch/master/graph/badge.svg)](https://codecov.io/gh/RobDWaller/psr-jwt) [![Infection MSI](https://badge.stryker-mutator.io/github.com/RobDWaller/psr-jwt/master)](https://infection.github.io) [![StyleCI](https://github.styleci.io/repos/167511682/shield?branch=master)](https://github.styleci.io/repos/167511682) [![Latest Stable Version](https://poser.pugx.org/rbdwllr/psr-jwt/v/stable)](https://packagist.org/packages/rbdwllr/psr-jwt) ![PHP Version Support](https://img.shields.io/travis/php-v/RobDWaller/psr-jwt/master)
+[![Build Status](https://travis-ci.org/RobDWaller/psr-jwt.svg?branch=master)](https://travis-ci.org/RobDWaller/psr-jwt) [![codecov](https://codecov.io/gh/RobDWaller/psr-jwt/branch/master/graph/badge.svg)](https://codecov.io/gh/RobDWaller/psr-jwt) [![Infection MSI](https://badge.stryker-mutator.io/github.com/RobDWaller/psr-jwt/master)](https://infection.github.io) [![StyleCI](https://github.styleci.io/repos/167511682/shield?branch=master)](https://github.styleci.io/repos/167511682) [![Latest Stable Version](https://poser.pugx.org/rbdwllr/psr-jwt/v/stable)](https://packagist.org/packages/rbdwllr/psr-jwt) ![PHP Version Support](https://img.shields.io/packagist/php-v/rbdwllr/psr-jwt) [![Total Downloads](https://poser.pugx.org/rbdwllr/psr-jwt/downloads)](https://packagist.org/packages/rbdwllr/psr-jwt)
 
 PSR-JWT is a middleware library which allows you to authorise JSON Web Tokens contained in a web request. It is [PSR-7](https://www.php-fig.org/psr/psr-7/) and [PSR-15](https://www.php-fig.org/psr/psr-15/) compliant and built on top of [ReallySimpleJWT](https://github.com/RobDWaller/ReallySimpleJWT).