docs: fix supported versions in security policy (#91)

Author: britter

SECURITY.md

@@ -4,7 +4,7 @@
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 1.0.x   | :white_check_mark: |
+| 1.x     | :white_check_mark: |
 
 ## Reporting a Vulnerability