bot api 5.3 badge

README.md

@@ -4,7 +4,7 @@
 
 Asynchronous PHP Telegram Bot Framework built on top of [ReactPHP](https://reactphp.org/)
 
-[![Bot API](https://img.shields.io/badge/Bot%20API-5.3%20(November%202020)-blue)](https://core.telegram.org/bots/api)
+[![Bot API](https://img.shields.io/badge/Bot%20API-5.3%20(June%202021)-blue)](https://core.telegram.org/bots/api)
 [![PHP](https://img.shields.io/badge/PHP-%3E%3D7.3-blue)](https://www.php.net/)
 [![Build Status](https://travis-ci.org/badfarm/zanzara.svg?branch=master)](https://travis-ci.org/badfarm/zanzara)
 [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/badfarm/zanzara/badges/quality-score.png?b=develop)](https://scrutinizer-ci.com/g/badfarm/zanzara/?branch=develop)
@@ -20,7 +20,7 @@ Asynchronous PHP Telegram Bot Framework built on top of [ReactPHP](https://react
 * Based on [ReactPHP](https://reactphp.org/) asynchronous non-blocking I/O model
 * Scheduled functions/timers provided by ReactPHP
 * Bulk message sending (no more 429 annoying errors)
-* Full [Telegram Bot Api 5.3](https://core.telegram.org/bots/api) support (November 2020)
+* Full [Telegram Bot Api 5.3](https://core.telegram.org/bots/api) support (June 2021)
 
 ### Installation
 ```