IRC Jabber on Contact page

input/contact.md

 
 Mail: <xythobuz@xythobuz.de>
 
+Jabber: xythobuz@jabber.org
+
 Twitter: [@xythobuz][2]
 
 Facebook: [Ver Ballert][3]
 
 Vimeo: [xythobuz][5]
 
+IRC: [irc.xythobuz.de][6] and probably elsewhere :)
+
  [1]: files/xythobuz.gpg
  [2]: https://twitter.com/xythobuz
  [3]: https://www.facebook.com/vballert
  [4]: http://www.youtube.com/user/xythobuz
- [5]: https://vimeo.com/xythobuz
+ [5]: https://vimeo.com/xythobuz
+ [6]: https://kiwiirc.com/client/irc.xythobuz.de/xythobuz