Add Gatus to Status / Uptime pages (#3366)

README.md

@@ -1910,6 +1910,7 @@ _Related: [Monitoring](#monitoring)_
 - [cState](https://github.com/cstate/cstate) - Static status page for hyperfast Hugo. Clean design, minimal JS, super light HTML/CSS, high customization, optional admin panel, read-only API, IE8+. Best used with Netlify, Docker. ([Demo](https://cstate.mnts.lt/)) `MIT` `Go`
 - [s.Status](https://github.com/scolastico-dev/s.Status) - Open-source server status page written in java. `MPL-2.0` `Java`
 - [StatPing.ng](https://statping-ng.github.io/) - An easy to use Status Page for your websites and applications. Statping will automatically fetch the application and render a beautiful status page with tons of features for you to build an even better status page. ([Source Code](https://github.com/statping-ng/statping-ng)) `GPL-3.0` `Docker/Go`
+- [Gatus](https://github.com/TwiN/gatus) - Automated service health dashboard. ([Demo](https://status.twin.sh)) `Apache-2.0` `Docker`
 - [Uptime Kuma](https://github.com/louislam/uptime-kuma) - Self-hosted website monitoring tool like "Uptime Robot". ([Demo](https://demo.uptime.kuma.pet)) `MIT` `Nodejs`
 - [Vigil](https://crates.io/crates/vigil-server) - Microservices Status Page. Monitors a distributed infrastructure and sends alerts (Slack, SMS, etc.). ([Demo](https://status.crisp.chat/), [Source Code](https://github.com/valeriansaliou/vigil)) `MPL-2.0` `Rust/Docker`