Readme updated

inspector/README.md

@@ -26,11 +26,40 @@ A right panel will be created containing the Babylon.js inspector.
 
 ## Features
 
+The inspector is composed of a set of tabs (Scene, Shader, Mesh...), each one dedicated to a part of 
+the engine. Several tools are also available for specific actions.
+
+##Tabs 
+
+![](https://raw.githubusercontent.com/Temechon/Babylon.js/master/inspector/screens/tab_mesh.jpg)
+
+Tabs are separated in two parts (although some are very specific - `Shader` for example): 
+* a tree panel, presenting a list of object relative to the current tab (meshes, materials...)
+* a properties panel, presenting the list of properties of the selected object
+
+The properties panel is refreshed *almost* in real time (actually each 250ms), 
+and can also be updated manually by clicking on a value and pressing `enter`.
+
+For some tabs, a search bar is also available to look for a specific object.
+
+There are currently 5 tabs: 
+* `Scene`: displays several properties of the class `BABYLON.Scene`, and provides checkbox to 
+manipulate some options (like the old debug layer)
+* `Mesh` : displays the list of all meshes in the current scene. 
+* `Light`: displays the list of all lights in the current scene. 
+* `Shader` : displays the list of custom shaders of the scene. For each shader, the vertex shader and fragment shader is displayed.
+* `Canvas2D` : displays the list of all instances of Canvas2D for the current scene. The parent-children hierarchy is represented in the tree.
+* `Material` : displays the list of all material in the current scene (keep in mind that every property is updated every 250ms.)
+
+Some properties (like colors, texture...) can display 
 ### Tools
-![](../screens.jpg)
+![](https://raw.githubusercontent.com/Temechon/Babylon.js/master/inspector/screens/tools.jpg)
 
 Several tools are available (from left to right) : 
-* Refresh
+* Refresh - the current tab is refreshed with the last version of the list of objects
+* Pointer - select a mesh in the scene and display its properties in the `Mesh` tab.
+* Popup - Undock the inspector into a separate window.
+* Pause - Pause the automatic update of properties, allowing to manually update one.
 
 ## Contribute
 
@@ -39,7 +68,7 @@ npm install
 grunt
 ```
 
-## Create the lib from source
+## Create the inspector from source
 
 ```
 grunt dist