Fixed link to RxPy in readme

README.md

@@ -89,7 +89,7 @@ Flavors of Rx
 * [RxScala](https://github.com/ReactiveX/RxScala): Reactive Extensions for Scala – a library for composing asynchronous and event-based programs using observable sequences
 * [RxCpp](https://github.com/Reactive-Extensions/RxCpp): The Reactive Extensions for Native (RxCpp) is a library for composing asynchronous and event-based programs using observable sequences and LINQ-style query operators in both C and C++.
 * [Rx.rb](http://rxrb.codeplex.com): A prototype implementation of Reactive Extensions for Ruby (Rx.rb).
-* [RxPy](https://github.com/Reactive-Extensions/RxPy): The Reactive Extensions for Python 3 (Rx.Py) is a set of libraries to compose asynchronous and event-based programs using observable collections and LINQ-style query operators in Python 3.
+* [RxPy](https://github.com/ReactiveX/RxPY): The Reactive Extensions for Python 3 (Rx.Py) is a set of libraries to compose asynchronous and event-based programs using observable collections and LINQ-style query operators in Python 3.
 
 
 Interactive Extensions