Create SECURITY.md

Author: dbeal-eth

SECURITY.md

@@ -0,0 +1,15 @@
+# Security Policy
+
+## Supported Versions
+
+Use this section to tell people about which versions of your project are
+currently being supported with security updates.
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 2.4.x   | :white_check_mark: |
+| < 2.4   | :x:                |
+
+## Reporting a Vulnerability
+
+Please send a message to db#1770 on Discord.