add fathom analytics

README.md

@@ -105,6 +105,7 @@ _Web Analytics_
 - [AWStats](http://www.awstats.org/) - Generates web, streaming, ftp or mail server statistics graphically. ([Source Code](https://github.com/eldy/awstats)) `GPL-3.0` `Perl`
 - [Countly](https://count.ly) - Real time mobile and web analytics, crash reporting and push notifications platform. ([Source Code](https://github.com/countly)) `AGPL-3.0` `Javascript`
 - [Druid](http://druid.io/) - Distributed, column-oriented, real-time analytics data store. ([Source Code](https://github.com/druid-io/druid/)) `Apache-2.0` `Java`
+- [Fathom Analytics](https://usefathom.com) - Simple & trustworthy website analytics. ([Source Code](https://github.com/usefathom/fathom)) `MIT` `Go`
 - [GoAccess](http://goaccess.io/) - Real-time web log analyzer and interactive viewer that runs in a terminal. ([Source Code](https://github.com/allinurl/goaccess)) `GPL-2.0` `C`
 - [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 Piwik alternative. ([Source Code](https://github.com/padams/Open-Web-Analytics/)) `GPL-2.0` `PHP`