📝update

update md

Author: 李昕亮

README.md

@@ -10,6 +10,12 @@
 
 > 🔧A webpack plugin to inline source in html, wrapper of inline-source.
 
+### Env
+
+* Node - v4.7.0
+* npm - 2.15.11
+* webpack - ^1.14.0
+
 ## Install
 
 ```shell
@@ -111,6 +117,20 @@ new HtmlInlineSourceWebpackPlugin([
 
 see [here](https://github.com/popeindustries/inline-source#usage).
 
+#### Callback
+
+```js
+new HtmlInlineSourceWebpackPlugin(function () {
+    console.log('inline source done!');
+})
+/* or */
+new HtmlInlineSourceWebpackPlugin({
+    /* option */
+}, function () {
+    console.log('inline source done!');
+})
+```
+
 ## Related
 
 * [inline-source](https://www.npmjs.com/package/inline-source)