Update README.md

Author: C-Lodder

README.md

@@ -10,7 +10,7 @@
 
 This plugin requires Grunt `~1.0.3`
 
-**Note:** As of v3.0.0, Node.js 10.x, 12.x or 14.x is required.
+**Note:** As of v3.0.0, Node.js 10.x or above is required.
 
 If you haven't used [Grunt](http://gruntjs.com/) before, be sure to check out the [Getting Started](http://gruntjs.com/getting-started) guide, as it explains how to create a [Gruntfile](http://gruntjs.com/sample-gruntfile) as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command: