Make @ebetica and @goldsborough owners for torch/csrc/api (#7110)

diff --git a/CODEOWNERS b/CODEOWNERS
index 6157040..add95f2 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -10,3 +10,4 @@
 /README.md @apaszke @soumith @colesbury @gchanan @zdevito @ezyang
 /setup.py @apaszke @soumith @colesbury @gchanan @zdevito @ezyang
 /requirements.txt @apaszke @soumith @colesbury @gchanan @zdevito @ezyang
+/torch/csrc/api/ @apaszke @soumith @colesbury @gchanan @zdevito @ezyang @ebetica @goldsborough