Adds Hady and Manuel to CONTRIBUTORS.
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 7678b3d..0934ae1 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -11,11 +11,13 @@
Chris Taylor <taylorc@google.com>
Dan Egnor <egnor@google.com>
Eric Roman <eroman@chromium.org>
+Hady Zalek <hady.zalek@gmail.com>
Jeffrey Yasskin <jyasskin@google.com>
Jói Sigurðsson <joi@google.com>
Keir Mierle <mierle@gmail.com>
Keith Ray <keith.ray@gmail.com>
Kenton Varda <kenton@google.com>
+Manuel Klimek <klimek@google.com>
Markus Heule <markus.heule@gmail.com>
Mika Raento <mikie@iki.fi>
Miklós Fazekas <mfazekas@szemafor.com>