Update the readme

Author: brandonkelly

README.md

@@ -6,7 +6,7 @@ It’s powered by Phil Sturgeon’s excellent [Fractal](http://fractal.thephplea
 
 ## Requirements
 
-This plugin requires Craft CMS 4.0 or later.
+This plugin requires Craft CMS 4.0.0+ or 5.0.0+.
 
 ## Installation