Update contributor list

Signed-off-by: Peter Müller <peter.mueller@ipfire.org>

html/cgi-bin/credits.cgi

@@ -65,8 +65,8 @@ Arne Fitzenreiter,
 Stefan Schantl,
 Peter Müller,
 Matthias Fischer,
-Christian Schmidt,
 Adolf Belka,
+Christian Schmidt,
 Alexander Marx,
 Erik Kapfer,
 Jan Paul Tücking,
@@ -83,20 +83,20 @@ Daniel Glanzmann,
 Heiner Schmeling,
 Stephan Feddersen,
 Stéphane Pautrel,
+Robin Roevens,
 Tim FitzGeorge,
 Jan Lentfer,
 Marcus Scholz,
 Ersan Yildirim,
 Jörn-Ingo Weigert,
 Alexander Koch,
-Robin Roevens,
 Wolfgang Apolinarski,
+Jon Murphy,
 Alfred Haas,
 Lars Schuhmacher,
 Rene Zingel,
 Sascha Kilian,
 Bernhard Bitsch,
-Jon Murphy,
 Ronald Wiesinger,
 Florian Bührle,
 Justin Luth,