Update README with workflow notice

Author: cboden

README.md

@@ -4,6 +4,13 @@ Event-driven, non-blocking I/O with PHP.
 
 [![Build Status](https://secure.travis-ci.org/reactphp/react.png?branch=split)](http://travis-ci.org/reactphp/react)
 
+### Notice - (May 25th, 2014)
+
+As of 2014-05-25 we have reversed roles of this and the component repositories. 
+Instead of reactphp/react being the master code repository it is now the sum of React's parts. 
+All PRs should be made against their corresponding repository found in [/reactphp](https://github.com/reactphp). 
+All existing PRs will be evaluated and work will be done with the submitter to merge it into the proper component. 
+
 ## Install
 
 The recommended way to install react is [through composer](http://getcomposer.org).