Updated readme file

Author: wpscholar

readme.md

@@ -2,5 +2,17 @@
 
 ## Installation
 
-- Run `composer create-project wpscholar/wp-menu-ui-vue-prototype` from the WordPress plugins directory.
-- Activate the plugin from the "Installed Plugins" screen in the WordPress admin.
+- Make sure you have the following tools installed:
+    - [Composer](https://getcomposer.org/)
+    - [Node](https://nodejs.org/en/)
+    - [NPM](https://www.npmjs.com/get-npm)
+- In a terminal, run `composer create-project wpscholar/wp-menu-ui-vue-prototype` from the WordPress plugins directory.
+- Activate the plugin from the `Installed Plugins` screen in the WordPress admin.
+
+## Usage
+
+Once installed and activated, the plugin adds a `Vue Menus` item to the WordPress admin sidebar menu. Clicking this will load up the Vue app for menu management. It will feel familiar.
+
+## Feedback & Contributions
+
+Feedback or contributions of any kind is welcome; just create an issue or open a pull request.