point reporting security issues to SECURITY.md (#1168)

README.md

@@ -76,10 +76,6 @@ For more information:
 
 ## Reporting Security Issues
 
-Security issues and bugs should be reported privately, via email, to the
-Microsoft Security Response Center (MSRC) at
-[secure@microsoft.com](mailto:secure@microsoft.com). You should receive a
-response within 24 hours. If for some reason you do not, please follow up via
-email to ensure we received your original message. Further information,
-including the [MSRC PGP](https://technet.microsoft.com/en-us/security/dn606155)
-key, can be found in the [Security TechCenter](https://technet.microsoft.com/en-us/security/default).
+Security issues and bugs should be reported privately to the Microsoft Security
+Response Center (MSRC).  For more information, please see
+[SECURITY.md](SECURITY.md).