Update Broken Link In README.md For Keras Python Code In Addition RNN in Webworker Example (#1260)

Co-authored-by: Matthew Soulanille <[email protected]>

Author: gaikwadrahul8

addition-rnn-webworker/README.md

@@ -4,6 +4,6 @@ This example uses an RNN to compute (in a worker thread) the addition of two int
 string => string translation. Obviously it's not the best way to add two
 numbers, but it makes a fun example. In this way, we can do long-running computation without blocking the UI thread.
 
-Note: This example is based on the addition-rnn [example](https://github.com/tensorflow/tfjs-examples/tree/master/addition-rnn) in this repo, which is based on the original Keras python code [here](https://github.com/keras-team/keras/blob/master/examples/addition_rnn.py)
+Note: This example is based on the addition-rnn [example](https://github.com/tensorflow/tfjs-examples/tree/master/addition-rnn) in this repo, which is based on the original Keras python code [here](https://github.com/keras-team/keras-io/blob/master/examples/nlp/addition_rnn.py)
 
 [See this example live!](https://storage.googleapis.com/tfjs-examples/addition-rnn/dist/index.html)