docs: vue3 version

Author: mazinsw

README.md

@@ -1,7 +1,7 @@
 # Vue-Keybindings
 
 [![NPM version](https://img.shields.io/npm/v/vue-keybindings.svg)](https://www.npmjs.com/package/vue-keybindings)
-![VueJS v2 compatible](https://img.shields.io/badge/Vuejs%202-compatible-green.svg)
+![VueJS v3 compatible](https://img.shields.io/badge/Vuejs%203-compatible-green.svg)
 <a href="https://www.npmjs.com/package/vue-keybindings"><img src="https://img.shields.io/npm/dt/vue-keybindings.svg" alt="Downloads"></a>
 <a href="https://www.npmjs.com/package/vue-keybindings"><img src="https://img.shields.io/npm/l/vue-keybindings.svg" alt="License"></a>
 
@@ -13,6 +13,12 @@ Keyboard Shortcuts registration and Keybindings management
 npm install vue-keybindings --save
 ```
 
+or
+
+``` bash
+yarn add vue-keybindings
+```
+
 ## Usage
 #### Configuration
 ``` js