Add babel-plugin-add-module-exports to improve common js syntax

Author: dlin-me

.babelrc

@@ -1,3 +1,6 @@
 {
-  "presets": ["es2015", "react", "stage-0"]
+  "presets": ["es2015", "react", "stage-0"],
+  "plugins": [
+    "add-module-exports"
+  ]
 }

README.md

@@ -19,7 +19,10 @@ It is useful for building tree structure UI for data display and data traversal.
 
 ## Example
 
-__In short__, it provides a function that assigns an extra field named `nodeData` to each node of your tree:
+__In short__, it provides a function that assigns an extra field named `nodeData` to each node of your tree.
+
+[See it live here.](https://runkit.com/dlin-me/tree-node-data-demo)
+ 
 
 <table>
 <tr>
@@ -31,7 +34,7 @@ __In short__, it provides a function that assigns an extra field named `nodeData
 
 ```
 [{
-name: 'Software'
+name: 'Software',
 key: 1,
 children: [
   { 

lib/tree-node-data.js

@@ -33,6 +33,7 @@
     "babel-core": "^6.26.0",
     "babel-eslint": "^8.0.3",
     "babel-loader": "^7.1.2",
+    "babel-plugin-add-module-exports": "^0.2.1",
     "babel-preset-env": "^1.6.1",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-react": "^6.24.1",

lib/tree-node-data.js.map

@@ -1,5 +1,5 @@
 import { expect } from 'chai';
-import { assignNodeData } from './assignNodeData';
+import assignNodeData from './assignNodeData';
 
 const nodes = [
   {

lib/tree-node-data.min.js

@@ -43,10 +43,6 @@ const config = {
     modules: [path.resolve('./node_modules'), path.resolve('./src')],
     extensions: ['.json', '.js']
   },
-  externals: {
-    react: 'react',
-    react: 'prop-types',
-  },
   plugins: plugins
 };