Update README.md

Author: s1ddok

README.md

@@ -31,18 +31,15 @@ Creating New Projects
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 For creating new projects you should use an official [Cocos2D Installer][5].
 
-There is a rich GUI editor for Cocos2D app named SpriteBuilder. SpriteBuilder is, just like Cocos2D, free and open source. You can get SpriteBuilder from [spritebuilder.com](http://spritebuilder.com) or from the Mac App Store. Projects created using SpriteBuilder contains the complete Cocos2D source code, and after the project has been created using SpriteBuilder is optional.
-
-SpriteBuilder also allows you to update the Cocos2D version in your project, to newest version, making it trivial to always keep you project updated to latest Cocos2D version.
-
+Documentation
+---------------------
 You can find the full Cocos2D documentation and user guide at our [documentation page](http://cocos2d-objc.org/docs/).
 
 Important:
 ---------------------
 Version 3.5 is introduced.
 [See release notes](https://github.com/cocos2d/cocos2d-objc/wiki/Cocos2D-3.5-Release-notes)
 
-
 Features
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    * Scene management (workflow)