Add Koillection to Miscellaneous (#2876)

README.md

@@ -1222,6 +1222,7 @@ _See also: [List of streaming media systems - Wikipedia](https://en.wikipedia.or
 - [Journal](https://github.com/inoda/journal) - Simple journaling with encrypted entries and sharing capabilities. `MIT` `Ruby`
 - [Kimai](https://www.kimai.org/) - Kimai is a free & open source timetracker. It tracks work time and prints out a summary of your activities on demand. ([Demo](https://www.kimai.org/demo/), [Source Code](https://github.com/kevinpapst/kimai2/)) `MIT` `PHP`
 - [King Phisher](https://github.com/rsmusllp/king-phisher) - King Phisher is a tool for testing and promoting user awareness by simulating real world phishing attacks. `BSD-3-Clause` `Python`
+- [Koillection](https://koillection.github.io/) - Koillection is a service allowing users to manage any kind of collections. ([Source Code](https://github.com/koillection/koillection)) `MIT` `PHP`
 - [Lancache](https://lancache.net) `⚠` - LAN Party game caching made easy. ([Source Code](https://github.com/lancachenet/monolithic)) `MIT` `Docker/Shell`
 - [MailyGo](https://codeberg.org/jlelse/MailyGo) - MailyGo is a small tool written in Go that allows to send HTML forms, for example from static websites without a dynamic backend, via email. `MIT` `Go`
 - [MindsDB](https://github.com/mindsdb/mindsdb) - MindsDB is an open source self hosted AI layer for existing databases that allows you to effortlessly develop, train and deploy state-of-the-art machine learning models using standard queries. `GPL-3.0` `Python`