credits: add Credits.rtf file

Necessary to generate About screen

Refs #69161

Change-Id: I23786447caf46a096aadbc083d3dd2287c6552b5
diff --git a/Credits.rtf b/Credits.rtf
new file mode 100644
index 0000000..49d3ce1
--- /dev/null
+++ b/Credits.rtf
@@ -0,0 +1,24 @@
+{\rtf1\ansi\ansicpg1252\cocoartf1265\cocoasubrtf210
+{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\margl1440\margr1440\vieww9000\viewh8400\viewkind0
+\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural\qc
+
+\f0\i\fs24 \cf0 \
+\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural\qc
+{\field{\*\fldinst{HYPERLINK "http://ring.cx/"}}{\fldrslt \cf0 http://ring.cx/}}\
+\
+\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural\qc
+
+\i0\b \cf0 Authors
+\i\b0 \
+Alexandre Lision\
+Guillaume Roguez\
+Eloi 	Bail\
+Adrien B\'e9raud\
+Thibault Cohen\
+Stepan Salenikovich\
+\'c9dric Ladent-Milaret\
+\
+Based on SFLphone's project\
+}
\ No newline at end of file