add an option to enable key sorting before display

README.md

@@ -4,20 +4,25 @@ Simple json display component,  based on vue
 
 ## Installing:
 Using npm:
-``` 
+```
 $ npm install vue-json-viewer
 ```
 Using bower:
 
 
-``` 
+```
 $ yarn add vue-json-viewer
 ```
 
 ## Example:
 
-``` html 
-<json-viewer :value="jsonData" :show-copy="true" icon-prefix="ion" :show-bigger="true"></json-viewer>
+``` html
+<json-viewer
+  :value="jsonData"
+  :show-copy="true"
+  icon-prefix="ion"
+  :show-bigger="true"
+  :sort-keys="true" />
 ```
 
 ``` js
@@ -42,14 +47,15 @@ export default {
 }
 ```
 ## Result:
-![ABC](http://oxqqtdux0.bkt.clouddn.com/WX20180702-172158.png) 
+![ABC](http://oxqqtdux0.bkt.clouddn.com/WX20180702-172158.png)
 
 
 ## Options:
 
-| Property         | Description           | 
-| ----------- |:-------------|
-| value       | json data |
-| show-copy   | display the copy button |
-| show-bigger | display the bigger button      |
-| icon-prefix | Custom Font icon prefix      |
+| Property | Description |
+| ----------- |:------------- |
+| value | json data |
+| show-copy | display the copy button |
+| show-bigger | display the bigger button |
+| icon-prefix | Custom Font icon prefix |
+| sort-keys | Sort items by key names |