docs(readme): 📝 Update doc

Author: imanmalekian31

README.md

@@ -10,12 +10,20 @@
 
 ## Installation
 
+### Vue 3
 ```shell
 # npm
 $ npm install vue-toy-face
 # yarn
 $ yarn add vue-toy-face
 ```
+### Vue 2
+```shell
+# npm
+$ npm install vue-toy-face@1.5.0
+# yarn
+$ yarn add vue-toy-face@1.5.0
+```
 
 ## Usage