Fix link for Koel (#68)

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README.md

@@ -14,7 +14,7 @@ stateless OpenVPN dockerized server which doesn't require persistent storage.
 - [Ampache](https://github.com/ampache/ampache) — web based audio/video streaming application and file manager.
 - [Madsonic](https://beta.madsonic.org/pages/index.jsp) — web-based media library and media streamer with jukebox functionality.
 - [Mopidy](https://www.mopidy.com/) — extensible music server.
-- [Koel](https://koel.phanan.net/) — simple web-based personal audio streaming service. [(GitHub)](https://github.com/phanan/koel)
+- [Koel](https://koel.dev/) — simple web-based personal audio streaming service. [(GitHub)](https://github.com/phanan/koel)
 - [Funkwhale](https://funkwhale.audio/) — web-based music library with Airsonic compatibility. [(GitLab)](https://dev.funkwhale.audio/funkwhale/funkwhale)
 - [AzuraCast](https://www.azuracast.com/) — web radio management suite, with a modern web app. [(GitHub)](https://github.com/AzuraCast/AzuraCast)