update COPYRIGHT file to reflect new contributors
diff --git a/COPYRIGHT b/COPYRIGHT
index a8a38a5..a8833d4 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -29,7 +29,9 @@
Arvid Picciani
Bobby Bingham
Boris Brezillon
+Brent Cook
Chris Spiegel
+Clément Vasseur
Emil Renner Berthing
Hiltjo Posthuma
Isaac Dunham
@@ -39,6 +41,7 @@
Justin Cormack
Luca Barbato
Luka Perkov
+M Farkas-Dyck (Strake)
Michael Forney
Nicholas J. Kain
orc
@@ -46,8 +49,9 @@
Pierre Carrier
Rich Felker
Richard Pennington
+sin
Solar Designer
-Strake
+Stefan Kristiansson
Szabolcs Nagy
Timo Teräs
Valentin Ochs