remove APIQ CMS (unmaintained since 2018, website down)

README.md

@@ -529,7 +529,6 @@ _[Extensible Messaging and Presence Protocol](https://en.wikipedia.org/wiki/XMPP
 CMS are a practical way to setup a website with many features. CMS often come with third party plugins, themes and functionality that is easy to add and customize to your needs. See also [Blogging Platforms](#blogging-platforms) and [Static Site Generators](#static-site-generators)
 
 - [Alfresco Community Edition](https://www.alfresco.com/products/community/download) - The open source Enterprise Content Management software that handles any type of content, allowing users to easily share and collaborate on content. ([Source Code](https://hub.alfresco.com/t5/alfresco-content-services-hub/project-overview-repository/ba-p/290502)) `LGPL-3.0` `Java`
-- [APIQ CMS](https://github.com/apiqcms/kms) - Simple and powerful Ruby on Rails CMS for developers. `MIT` `Ruby`
 - [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`