update README

README.md

@@ -4,10 +4,10 @@
 [![Ember Observer Score](https://emberobserver.com/badges/ember-a11y-refocus.svg)](http://emberobserver.com/addons/ember-a11y-refocus)
 [![Build status](https://github.com/ember-a11y/ember-a11y-refocus/actions/workflows/main.yml/badge.svg)](https://github.com/ember-a11y/ember-a11y-refocus/actions)
 
-
 ## What This Addon Does
 
 This addon does three things:
+
 1. it adds a message to the page to let the screen reader user know that the route has changed and regular page navigation can resume (it is similar to [https://github.com/ember-a11y/a11y-announcer](https://github.com/ember-a11y/a11y-announcer) but does not use `aria-live`).
 2. It moves the focus to that message for the screen reader user, effectively resetting focus in Ember apps (similar to how a native web page/site works).
 3. It provides a bypass mechanism so the user can skip to the page's primary content (see https://www.w3.org/TR/WCAG20-TECHS/G1.html). You can opt out of this if you want (see the `Options` section for available options).
@@ -28,14 +28,12 @@ Async data can be loaded as it normally would be. Since this addon does not use
 
 Since this will run before other content, focus can be programmatically moved by the developer to go somewhere else. The message should still read out, and is findable by users with screen readers.
 
-
-
 Compatibility
 ------------------------------------------------------------------------------
 
 * Ember.js v3.26 or above
 * Ember CLI v3.26 or above
-* Node.js v12 or above
+* Node.js v14 or above
 
 Installation
 ------------------------------------------------------------------------------