Add default code reviewers into OWNERS
am: f2ae604d0a

Change-Id: Ic9ba69898f3f57d80eee08e232a854ecc204d2b3
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..06a8e35
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,3 @@
+# Default code reviewers picked from top 3 or more developers.
+# Please update this list if you find better candidates.
+butlermichael@google.com