update CONTRIBUTORS.md

(manually remove duplicates)

CONTRIBUTORS.md

@@ -1,27 +1,38 @@
  Andreas Shimokawa <shimokawa@fsfe.org>
- cpfeiffer <cpfeiffer@users.noreply.github.com>
- Daniele Gobbetti <daniele+github@gobbetti.name>
- Daniele Gobbetti <daniele@gobbetti.name>
- danielegobbetti <daniele+github@gobbetti.name>
  Carsten Pfeiffer <cpfeiffer@users.noreply.github.com>
+ Daniele Gobbetti <daniele@gobbetti.name>
  Julien Pivotto <roidelapluie@inuits.eu>
+ Steffen Liebergeld <perl@gmx.org>
  Lem Dulfo <lemuel.dulfo@gmail.com>
  Sergey Trofimov <sarg@sarg.org.ru>
- Daniele Gobbetti <daniele.gobbetti@gmail.com>
- cpfeiffer <cpfeiffer@users.github.com>
+ JohnnySun <bmy001@gmail.com>
+ Uwe Hermann <uwe@hermann-uwe.de>
  0nse <0nse@users.noreply.github.com>
+ Gergely Peidl <gergely@peidl.net>
  Christian Fischer <sw-dev@computerlyrik.de>
  Normano64 <per.bergqwist@gmail.com>
  Ⲇⲁⲛⲓ Φi <daniphii@outlook.com>
+ xzovy <caleb@caleb-cooper.net>
  xphnx <xphnx@users.noreply.github.com>
  Tarik Sekmen <tarik@ilixi.org>
+ Szymon Tomasz Stefanek <s.stefanek@gmail.com>
+ Roman Plevka <rplevka@redhat.com>
  rober <rober@prtl.nodomain.net>
  Nicolò Balzarotti <anothersms@gmail.com>
+ Natanael Arndt <arndtn@gmail.com>
  Marc Schlaich <marc.schlaich@googlemail.com>
  kevlarcade <kevlarcade@gmail.com>
+ Kevin Richter <me@kevinrichter.nl>
  Kasha <kasha_malaga@hotmail.com>
+ Ivan <ivan_tizhanin@mail.ru>
+ Gilles MOREL <contact@gilles-morel.fr>
+ Gilles Émilien MOREL <Almtesh@users.noreply.github.com>
  Chris Perelstein <chris.perelstein@gmail.com>
+ Carlos Ferreira <calbertoferreira@gmail.com>
+ atkyritsis <at.kyritsis@gmail.com>
+ andre <andre.buesgen@yahoo.de>
  Alexey Afanasev <avafanasiev@gmail.com>
+ 6arms1leg <m.brnsfld@googlemail.com>
 
 And all the Transifex translators, which I cannot automatically list, at the moment.