Update README.md

Author: tirthajyoti

README.md

@@ -23,7 +23,7 @@ Essential codes for jump-starting machine learning/data science with Python
 ### Clustering
 * _K_-means clustering
 
-### Function approximation by linear model and Deep Learning method
+### Deep Learning/Neural Network
 * Demo notebook to illustrate the superiority of deep neural network for complex nonlinear function approximation task.
 * Step-by-step building of 1-hidden-layer and 2-hidden-layer dense network using basic TensorFlow methods