Merge pull request #2 from dvinay/dvinay-patch-1

Update SECURITY.md

Author: dvinay

SECURITY.md

@@ -7,10 +7,7 @@ currently being supported with security updates.
 
 | Version | Supported |
 | ------- | ------------------ |
-| 5.1.x | :white_check_mark: |
-| 5.0.x | :x: |
-| 4.0.x | :white_check_mark: |
-| < 4.0 | :x: |
+| 1.0.x | :white_check_mark: |
 
 ## Reporting a Vulnerability