Add authors from Nvidia.

Change-Id: I591bcff55796bc4c731143a4ad43669fe9bd6919
Reviewed-on: https://chromium-review.googlesource.com/255690
Reviewed-by: Shannon Woods <shannonwoods@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>

CONTRIBUTORS

@@ -1,4 +1,4 @@
-# This is the official list of people who can contribute
+# This is the official list of people who can contribute
 # (and who have contributed) code to the ANGLE project
 # repository.
 # The AUTHORS file lists the copyright holders; this file
@@ -97,6 +97,8 @@ Microsoft Open Technologies, Inc.
 
 NVIDIA Corporation
  Olli Etuaho
+ Arun Patole
+ Qingqing Deng
 
 Opera Software ASA
  Daniel Bratell