Update CODEOWNERS (#51726)

Summary:
add myself and alban to folders

Pull Request resolved: https://github.com/pytorch/pytorch/pull/51726

Reviewed By: albanD

Differential Revision: D26254528

Pulled By: soulitzer

fbshipit-source-id: 91477dda3ff81014dbadd3a93f5f511ac3da81e0
diff --git a/CODEOWNERS b/CODEOWNERS
index a0e4814..117d069 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -8,8 +8,9 @@
 
 # Not there to strictly require the approval, but to be tagged as a reviewer
 # on the PRs to push them into a high priority inbox.
-/torch/csrc/autograd/ @albanD
-/torch/autograd/ @albanD
+/torch/csrc/autograd/ @albanD @soulitzer
+/torch/autograd/ @albanD @soulitzer
+/tools/autograd/ @albanD @soulitzer
 
 # Tensorpipe RPC Agent.
 /torch/csrc/distributed/rpc/tensorpipe_agent.cpp @jiayisuse @osalpekar @lw @beauby