Add yanmin@ and zhouwenjie@ to incident proto OWNERS list.

Bug: N/A
Test: N/A
Change-Id: I8c2fa55a348c8cb1622489ab07fea05a29391f0b

core/proto/OWNERS

@@ -3,8 +3,10 @@
 # Metrics
 joeo@google.com
 singhtejinder@google.com
+yanmin@google.com
 yaochen@google.com
 yro@google.com
+zhouwenjie@google.com
 
 # Settings UI
 per-file settings_enums.proto=tmfang@google.com