remove BaunCMS (unmaintained since 2016, unanswered issues)

README.md

@@ -535,7 +535,6 @@ CMS are a practical way to setup a website with many features. CMS often come wi
 - [Apostrophe](http://apostrophecms.org/) - Node.js CMS with a focus on extensible in-context editing tools. ([Demo](http://demo.apostrophecms.org/), [Source Code](https://github.com/punkave/apostrophe)) `MIT` `Nodejs`
 - [b2evolution CMS](https://b2evolution.net/) - The most integrated CMS ever: b2evolution includes everything you need to build websites for publishing, sharing and interacting with your community. ([Demo](https://demo.b2evolution.net), [Source Code](https://github.com/b2evolution/b2evolution)) `GPL-2.0` `PHP`
 - [Backdrop CMS](https://backdropcms.org/) - Comprehensive CMS for small to medium sized businesses and non-profits. ([Source Code](https://github.com/backdrop/backdrop)) `GPL-2.0` `PHP`
-- [Baun](https://bauncms.com/) - Modern, lightweight, extensible CMS for PHP. ([Source Code](https://github.com/BaunCMS/Baun)) `MIT` `PHP`
 - [BigTree CMS](https://www.bigtreecms.org/) - Straightforward, well documented, and capable written with PHP and MySQL. ([Source Code](https://github.com/bigtreecms/BigTree-CMS)) `LGPL-2.1` `PHP`
 - [Bolt CMS](https://bolt.cm/) - Open source Content Management Tool, which strives to be as simple and straightforward as possible. ([Demo](https://try.bolt.cm/), [Source Code](https://github.com/bolt/bolt)) `MIT` `PHP`
 - [CMS Made Simple](http://www.cmsmadesimple.org/) - Open source content management system, faster and easier management of website contents, scalable for small businesses to large corporations. ([Source Code](http://svn.cmsmadesimple.org/svn/cmsmadesimple/trunk/)) `GPL-1.0` `PHP`