Update README

README.md

@@ -6,9 +6,11 @@ A general purpose PSD parser written in Coffeescript. Based off of [PSD.rb](http
 
 Runs in both NodeJS and the browser (using browserify).
 
-**Work in Progress**
+## Basic Usage
 
-## Usage
+PSD.js works almost exactly the same in the browser and NodeJS.
+
+### NodeJS
 
 ``` js
 var PSD = require('psd');
@@ -17,3 +19,21 @@ psd.parse();
 
 console.log(psd.header.export());
 ```
+
+### Browser
+
+``` js
+var PSD = require('psd');
+
+// Load from URL
+PSD.fromURL("/path/to/file.psd").then(function(psd) {
+  document.getElementById('ImageContainer').appendChild(psd.image.toPng());
+});
+
+// Load from event, e.g. drag & drop
+function onDrop(evt) {
+  PSD.fromEvent(evt).then(function (psd) {
+    console.log(psd.tree().export());
+  }); 
+}
+```