[COMMITTERS] Add ctopal and a-will

Signed-off-by: Alphan Ulusoy <alphan@google.com>
diff --git a/COMMITTERS b/COMMITTERS
index a66dba3..71b3e4e 100644
--- a/COMMITTERS
+++ b/COMMITTERS
@@ -24,8 +24,10 @@
 * Dominic Rizzo (domrizz0)
 * Michael Schaffner (msfschaffner)
 * Rupert Swarbrick (rswarbrick)
+* Canberk Topal (ctopal)
 * Timothy Trippel (timothytrippel)
 * Alphan Ulusoy (alphan)
 * Pirmin Vogel (vogelpi)
+* Alex Williams (a-will)
 * Weicai Yang (weicaiyang)
 * Miguel Young (mcy)