add Koko Analytics to Analytics section

README.md

@@ -117,6 +117,7 @@ _Web Analytics_
 - [GoatCounter](https://www.goatcounter.com) - Simple web statistics. No tracking of personal data. ([Source Code](https://github.com/zgoat/goatcounter)) `AGPL-3.0` `Go`
 - [Hastic](https://hastic.io) - Hackable time series pattern recognition tool with UI for Grafana. ([Source Code](https://github.com/hastic)) `Apache-2.0` `Python/Nodejs`
 - [KISSS](https://kis3.dev) - Very minimalistic (KISS) website statistics tool. ([Source Code](https://github.com/kis3/kis3)) `MIT` `Go`
+- [Koko Analytics](https://www.kokoanalytics.com/) - Privacy-friendly and open source analytics plugin for WordPress. ([Source Code](https://github.com/ibericode/koko-analytics/)) `GPL-3.0` `PHP`
 - [Matomo](https://matomo.org/) - Leading open-source analytics platform that gives you more than just powerful analytics, formerly known as Piwik. ([Source Code](https://github.com/matomo-org/)) `GPL-3.0` `PHP`
 - [Open Web Analytics](http://www.openwebanalytics.com/) - Google Analytics and Matomo alternative. ([Source Code](https://github.com/padams/Open-Web-Analytics)) `GPL-2.0` `PHP`
 - [Rakam](https://rakam.io/) - Custom analytics platform that allows you to create your own analytics services. Integrate with any data source (web, mobile, IoT etc.), analyze data with SQL and create dashboards. ([Source Code](https://github.com/rakam-io/rakam)) `Apache-2.0` `Java`