Add Snikket to XMPP servers

README.md

@@ -493,6 +493,7 @@ _[Extensible Messaging and Presence Protocol](https://en.wikipedia.org/wiki/XMPP
 - [MongooseIM](https://www.erlang-solutions.com/products/mongooseim.html) - Mobile messaging platform with a focus on performance and scalability. ([Source Code](https://github.com/esl/MongooseIM)) `GPL-2.0` `Erlang`
 - [Openfire](http://www.igniterealtime.org/projects/openfire/) - Real time collaboration (RTC) server. ([Source Code](https://github.com/igniterealtime/Openfire)) `Apache-2.0` `Java`
 - [Prosody IM](http://prosody.im/) - Feature-rich and easy to configure XMPP server. ([Source Code](http://hg.prosody.im/)) `MIT` `Lua`
+- [Snikket](https://snikket.org/) - All-in-one Dockerized easy XMPP solution, including web admin and clients. ([Source Code](https://github.com/snikket-im/snikket-server), [Clients](https://snikket.org/app/)) `Apache-2.0` `Lua, Python`
 - [Tigase](http://www.tigase.net/content/tigase-xmpp-server) - XMPP server implementation in Java. `GPL-3.0` `Java`
 
 #### XMPP Web Clients