Update CODE_OF_CONDUCT.md (#689)

Summary:
Updating contact email.
Pull Request resolved: #689

Differential Revision: D20167723

Pulled By: jmp84

fbshipit-source-id: 1dc801158cfe9acc8d19718c2f091592dce5f097

Author: jspisak

CODE_OF_CONDUCT.md

@@ -55,7 +55,7 @@ a project may be further defined and clarified by project maintainers.
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting the project team at <opensource-conduct@fb.com>. All
+reported by contacting the project team at <conduct@pytorch.org>. All
 complaints will be reviewed and investigated and will result in a response that
 is deemed necessary and appropriate to the circumstances. The project team is
 obligated to maintain confidentiality with regard to the reporter of an incident.