Regenerate README file - 2021-05-14

Author: schlessera

README.md

@@ -259,7 +259,7 @@ current theme.
 
 ## Installing
 
-Installing this package requires WP-CLI dev-master or greater. Update to the latest stable release with `wp cli update`.
+Installing this package requires WP-CLI v2.5 or greater. Update to the latest stable release with `wp cli update`.
 
 Once you've done so, you can install the latest stable version of this package with: