Update README.md

Author: tirthajyoti

Diff for: README.md

@@ -148,4 +148,11 @@ See my articles on Medium on this topic.
 ### Unit testing ML code with Pytest
 Check the files and detailed instructions in the [Pytest](https://github.com/tirthajyoti/Machine-Learning-with-Python/tree/master/Pytest) directory to understand how one should write unit testing code/module for machine learning models
 
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+### Memory and timing profiling
+
+Profiling data science code and ML models for memory footprint and computing time is a critical but often overlooed area. Here are a couple of Notebooks showing the ideas,
 
+* [Memory profling using Scalene](https://github.com/tirthajyoti/Machine-Learning-with-Python/tree/master/Memory-profiling/Scalene)
+* [Time-profiling data science code](https://github.com/tirthajyoti/Machine-Learning-with-Python/blob/master/Time-profiling/cProfile.ipynb)