Update README.md

Removed zettajs.org

README.md

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-[![Zetta](http://www.zettajs.org/images/logos/zetta-logo.svg)](http://www.zettajs.org/)
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 [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/zettajs/zetta?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![Build Status](https://travis-ci.org/zettajs/zetta.svg?branch=master)](https://travis-ci.org/zettajs/zetta) 
 
 # What is Zetta?
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 * The [Zetta Doc Wiki](https://github.com/zettajs/zetta/wiki) is where you'll find all of the documentation for Zetta, including overviews, tutorials, and reference content. 
 
-* You can also visit the Zetta site at [http://zettajs.org/](http://zettajs.org/) project recipes, event information, community links, and more. 
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 # Community
 
 The supportive Zetta community is steadily growing. We have channels where you can interact with the Zetta team directly as well as with other Zetta enthusiasts.