Updated README.md

Author: gurghet

README.md

@@ -46,9 +46,9 @@ Vue.component('smart-table', SmartTable)
 
 ``` html
 <!-- optional in your head -->
-<link rel="stylesheet" href="https://npmcdn.com/vue-smart-table@2.1.1/dist/static/vue-smart-table-default.css">
+<link rel="stylesheet" href="https://npmcdn.com/vue-smart-table@2.3.0/dist/static/vue-smart-table-default.css">
 <!-- at the end of your body -->
-<script src="https://npmcdn.com/vue-smart-table@2.1.1/dist/static/vue-smart-table.js"></script>
+<script src="https://npmcdn.com/vue-smart-table@2.3.0/dist/static/vue-smart-table.js"></script>
 ```
 
 That’s it! The component will register itself!
@@ -96,6 +96,10 @@ npm run ~unit
 
 ##Changelog
 
+###2.3.0
+
+- click column headers to order by that column
+
 ###2.2.1
 
 - again forgot about the dist files -.-