add exports and fix the entry point of the module

README.md

@@ -79,6 +79,13 @@ ap.init();
 + `ap.play()`
 + `ap.pause()`
 
+#### Work with module bundler
+
+```js
+var APlayer = require('APlayer');
+var ap = new APlayer({...});
+```
+
 ### With lrc
 
 #### LRC format:

package.json

@@ -1,8 +1,8 @@
 {
   "name": "aplayer",
-  "version": "1.3.2",
+  "version": "1.3.3",
   "description": "Wow, such a beautiful html5 music player",
-  "main": "APlayer.js",
+  "main": "dist/APlayer.min.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },