Simplify steps required to run example. (#78)

* Simplify steps to run example.

javascript/example/README

@@ -4,23 +4,14 @@ file and visualize it through threejs's fancy 3D tools.
 
 How to run the example code:
 
-(1) Create your working directory, e.g. draco_example/.
+(1) Clone this project to a working directory, e.g. draco/.
 
-(2) Download the latest three.js file from:
-https://github.com/mrdoob/three.js/blob/dev/build/three.js
-You could clone the repository and copy three.js from build/ to your
-working directory.
-
-(3) Copy DRACOLoader.js and webgl_loader_draco.html from
-draco/javascript/example to your working directory. Copy draco_decoder.js
-from draco/javascript to your working directory.
-
-(4) From your working directory, start a local http server.
+(2) From the project's root directory, start a local http server.
 E.g, with Python, you could run "python -m SimpleHTTPServer".
 
-(5) Load webgl_loader_draco.html. You should be able to see an empty scene
-rendered by threejs.
+(3) Load javascript/example/webgl_loader_draco.html. You should be able to see
+an empty scene rendered by threejs.
 
-(6) Click "Choose File" to select a draco encoded file (.drc) and you should be
+(4) Click "Choose File" to select a draco encoded file (.drc) and you should be
 able to see the model. e.g. bunny.drc. This is model encoded using Draco
 default compression. The original ply is located here "testdata/bun_zipper.ply".

javascript/example/webgl_loader_draco.html

@@ -41,8 +41,8 @@
         </div>
         <pre id="fileDisplayArea"><pre>
     </div>
-    <script src="three.js"></script>
-    <script src="draco_decoder.js"></script>
+    <script src="https://cdn.rawgit.com/mrdoob/three.js/r84/build/three.min.js"></script>
+    <script src="../draco_decoder.js"></script>
     <script src="DRACOLoader.js"></script>
     <script>
       'use strict';