about: list contributors alphabetically

Refs #67102

Change-Id: I564360cee2294e0569a473ff35962a7ee4b14b27
diff --git a/Credits.rtf b/Credits.rtf
index 49d3ce1..a91e42a 100644
--- a/Credits.rtf
+++ b/Credits.rtf
@@ -12,13 +12,14 @@
 
 \i0\b \cf0 Authors
 \i\b0 \
-Alexandre Lision\
-Guillaume Roguez\
-Eloi 	Bail\
 Adrien B\'e9raud\
-Thibault Cohen\
-Stepan Salenikovich\
+Alexandre Lision\
 \'c9dric Ladent-Milaret\
+Eloi Bail\
+Emmanuel Lepage-Vall\'e9e\
+Guillaume Roguez\
+Marianne Forget\
+Stepan Salenikovich\
 \
 Based on SFLphone's project\
-}
\ No newline at end of file
+}