Remove gitter

README.md

@@ -1,8 +1,6 @@
 HTML To Markdown for PHP
 ========================
 
-[![Join the chat at https://gitter.im/thephpleague/html-to-markdown](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/thephpleague/html-to-markdown?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-
 [![Latest Version](https://img.shields.io/packagist/v/league/html-to-markdown.svg?style=flat-square)](https://packagist.org/packages/league/html-to-markdown)
 [![Software License](http://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE)
 [![Build Status](https://img.shields.io/github/workflow/status/thephpleague/html-to-markdown/Tests/master.svg?style=flat-square)](https://github.com/thephpleague/html-to-markdown/actions?query=workflow%3ATests+branch%3Amaster)