[readme] compatible with keras

Author: zsdonghao

README.md

@@ -18,6 +18,7 @@
 
 TensorLayer is a Deep Learning (DL) and Reinforcement Learning (RL) library extended from [Google TensorFlow](https://www.tensorflow.org). It provides popular DL and RL modules that can be easily customized and assembled for tackling real-world machine learning problems. 
 
+* NEWS: Compatible with Keras 🆕
 * NEWS: Compatible with TF 1.0 🆕
 
 # Why TensorLayer