Added badges and language switch

README-CN.md

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+[English](./README.md) | 中文
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+[![Build Status](https://travis-ci.org/hyperf-cloud/hyperf.svg?branch=master)](https://travis-ci.org/hyperf-cloud/hyperf)
+[![Php Version](https://img.shields.io/badge/php-%3E=7.2-brightgreen.svg?maxAge=2592000)](https://secure.php.net/)
+[![Swoole Version](https://img.shields.io/badge/swoole-%3E=4.3.3-brightgreen.svg?maxAge=2592000)](https://github.com/swoole/swoole-src)
+[![Hyperf License](https://img.shields.io/github/license/hyperf-cloud/hyperf.svg?maxAge=2592000)](https://github.com/hyperf-cloud/hyperf/blob/master/LICENSE.md)
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 # 介绍
 
 Hyperf 是基于 `Swoole 4.3+` 实现的高性能、高灵活性的 PHP 持久化框架，内置协程服务器及大量常用的组件，性能较传统基于 `PHP-FPM` 的框架有质的提升，提供超高性能的同时，也保持着极其灵活的可扩展性，标准组件均以最新的 [PSR 标准](https://www.php-fig.org/psr) 实现，基于强大的依赖注入设计可确保框架内的绝大部分组件或类都是可替换的。

README.md

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+English | [中文](./README-CN.md)
+
+[![Build Status](https://travis-ci.org/hyperf-cloud/hyperf.svg?branch=master)](https://travis-ci.org/hyperf-cloud/hyperf)
+[![Php Version](https://img.shields.io/badge/php-%3E=7.2-brightgreen.svg?maxAge=2592000)](https://secure.php.net/)
+[![Swoole Version](https://img.shields.io/badge/swoole-%3E=4.3.3-brightgreen.svg?maxAge=2592000)](https://github.com/swoole/swoole-src)
+[![Hyperf License](https://img.shields.io/github/license/hyperf-cloud/hyperf.svg?maxAge=2592000)](https://github.com/hyperf-cloud/hyperf/blob/master/LICENSE.md)
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 # Introduction
 
 Hyperf is a high-performance, highly flexible PHP CLI framework based on `Swoole 4.3+`. It has a built-in coroutine server and a large number of commonly used components. The performance is better than the traditional PHP-FPM-based framework, providing ultra-high performance, and also maintains extremely flexible scalability at the same time. Standard components are implemented in the latest PSR standards, and a powerful dependency injection design ensures that most components or classes within the framework are replaceable.