📝 add security policy

Author: ianardee

SECURITY.md

@@ -0,0 +1,16 @@
+# Security Policy
+
+## Supported Versions
+
+Versions currently being supported with security updates:
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 4.x     | :white_check_mark: |
+| < 4.0   | :x:                |
+
+## Reporting a Vulnerability
+
+You can report security issues directly on GitHub. Reports are confidential.
+
+Any reported security issues will be given top priority.