Update SECURITY.md

A simple instruction for security researchers.

Author: sartoshi-foot-dao

SECURITY.md

@@ -14,8 +14,4 @@ currently being supported with security updates.
 
 ## Reporting a Vulnerability
 
-Use this section to tell people how to report a vulnerability.
-
-Tell them where to go, how often they can expect to get an update on a
-reported vulnerability, what to expect if the vulnerability is accepted or
-declined, etc.
+Please report security issues to <email>