Add EOL to README.md (#2836)

* Add EOL to README.md

Author: seanpmorgan

README.md

@@ -1,3 +1,20 @@
+
+<h2 align="center">
+ :warning: :warning: :warning:
+</h2>
+
+<h4 align="center">
+TensorFlow Addons (TFA) has ended development and introduction of new features.
+
+TFA has entered a minimal maintenance and release mode until a planned end of life 
+in May 2024. Please modify downstream libraries to take dependencies from other 
+repositories in our TensorFlow community (e.g. Keras, Keras-CV, and Keras-NLP)
+
+For more information see: [https://github.com/tensorflow/addons/issues/2807](https://github.com/tensorflow/addons/issues/2807)
+</h4>
+
+-----------------
+
 <div align="center">
   <img src="https://github.com/tensorflow/community/blob/master/sigs/logos/SIGAddons.png" width="60%"><br><br>
 </div>