Updating security contact email address (#59)

Author: chayim

CONTRIBUTING.md

@@ -36,7 +36,7 @@ Here's how to get started with your code contribution:
 ### Security Vulnerabilities
 
 **NOTE**: If you find a security vulnerability, do NOT open an issue.
-Email [Tyler Hutcherson (<tyler.hutcherson@redis.com>)](mailto:tyler.hutcherson@redis.com) instead.
+Email [Redis OSS (<oss@redis.com>)](mailto:oss@redis.com) instead.
 
 In order to determine whether you are dealing with a security issue, ask
 yourself these two questions:
@@ -75,4 +75,4 @@ you would like and how it should work.
 The core team looks at Pull Requests on a regular basis. We will give
 feedback as as soon as possible. After feedback, we expect a response
 within two weeks. After that time, we may close your PR if it isn't
-showing any activity.
+showing any activity.