Update the Canvas2D main .md file, first attempt

canvas2D/features.md

@@ -0,0 +1,3 @@
+Canvas2D: features list
+====================
+

canvas2D/readme.md

@@ -1,48 +1,64 @@
-Build Babylon.canvas2d.js with Gulp
+Canvas2D, a 100% WebGL based 2D Engine
 ====================
 
+## Table of Content
+
+- [Releases](#Releases)
+- [Features list](features.md)
+- [How to build it](#How-to-build-Babylon.canvas2d.js-with-Gulp)
+
+## Releases
+
+You want to use an existing build, that's simple, you can grab either the latest official release or the latest build of the current developing version.
+
+- The latest official release can be found [here](https://github.com/BabylonJS/Babylon.js/tree/master/dist)
+- The latest preview release (which is the current developing version, stable most of the time) can be found [there](https://github.com/BabylonJS/Babylon.js/tree/master/dist/preview%20release/canvas2D)
+
+
+## How to build Babylon.canvas2d.js with Gulp
+
 More info about [Canvas2D](http://doc.babylonjs.com/overviews/Canvas2D_Home)
 
 Build Babylon.canvas2d.js with [gulp](http://gulpjs.com/ "gulp") and npm ([nodejs](http://nodejs.org/ "nodejs")), easy and cross-platform
 
 (Paths in this file are relative to this file location.)
 
-# How to use it
+### How to use it
 
 From the /Tools/Gulp folder:
 
-### First install gulp :
+#### First install gulp :
 ```
 npm install -g gulp
 ```
 
-### Install some dependencies :
+#### Install some dependencies :
 ```
 npm install
 ```
 
-### Update dependencies if necessary :
+#### Update dependencies if necessary :
 ```
 npm update
 ```
 
-## From the javascript source
-### Build Babylon.canvas2d.js:
+### From the javascript source
+#### Build Babylon.canvas2d.js:
 
 ```
-gulp Canvas2D
+gulp canvas2D
 ```
 Will be generated in dist/preview release/canvas2D:
 - babylon.canvas2d.min.js
 - babylon.canvas2d.js (unminified)
 - babylon.canvas2d.d.ts
 
-### Build the changed files for debug when you save a typescript or shader file:
+#### Build the changed files for debug when you save a typescript or shader file:
 ```
 gulp watch
 ```
 
-### Watch and run a web server for debug purpose:
+#### Watch and run a web server for debug purpose:
 ```
 gulp run
 ```