credits: update contributors

Change-Id: I08956ecfb610a6964f18d372e0e3ef9692d80999
diff --git a/Credits.rtf b/Credits.rtf
index 02a2a4e..8e9fd8a 100644
--- a/Credits.rtf
+++ b/Credits.rtf
@@ -28,16 +28,19 @@
 Fr\'e9d\'e9ric Guimont\
 Guillaume Roguez\
 Hadrien De Sousa\
+Hugo Lefeuvre\
 Julien Grossholtz\
 Kateryna Kostiuk\
 Lo\'efc Siret\
 Marianne Forget\
+Maxim Cournoyer\
 Nicolas J\'e4ger\
 Nicolas Reynaud\
 Olivier Gr\'e9goire\
 Olivier Soldano\
 Patrick Keroulas\
 Philippe Gorley\
+Pierre Duchemin\
 Romain Bertozzi\
 S\'e9bastien Blin\
 Seva Ivanov\
@@ -54,4 +57,4 @@
 \i\b0 \
 \pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural\qc\partightenfactor0
 {\field{\*\fldinst{HYPERLINK "https://www.transifex.com/savoirfairelinux/ring/"}}{\fldrslt \cf0 https://www.transifex.com/savoirfairelinux/ring/}}\
-}
\ No newline at end of file
+}