Add docs and readme

_docs/index.tmpl.html

@@ -93,6 +93,14 @@ pre {
           <li>Image.ReplacePixels</li>
         </ul>
       </li>
+      <li>Add some experimental packages:
+        <ul>
+          <li>exp/audio: Play music and sound</li>
+          <li>exp/gamepad: Useful functions to configure gamepads</li>
+          <li>exp/shape: Draw ellipses and arcs</li>
+          <li>These packages are experimental and we don't guarantee backward compatibility.</li>
+        </ul>
+      </li>
       <li>Some bug fix</li>
     </ul>
   </li>

readme.md

@@ -8,13 +8,13 @@
     * Supported browsers: Chrome, Firefox, Safari on desktops
   * Mac OS X
   * Linux (maybe)
-  * Windows (possibly)
 * [API Docs](http://godoc.org/github.com/hajimehoshi/ebiten)
 
 ## Features
 
 * 2D Graphics
 * Input (Mouse, Keyboard, Gamepad)
+* Audio (Very primitive API. experimental)
 
 ## Documentation