Update README.md

Author: dylewsky

README.md

@@ -11,9 +11,29 @@ Cambridge Textbook, 2019
 Copyright 2019, All Rights Reserved  
 http://databookuw.com/
 
+Please cite this book when using this code/data. 
 
 MATLAB code library by J. N. Kutz and S. L. Brunton.
 
 Python versions of these demos are available at https://github.com/dynamicslab/Data_Driven_Science_Python_Demos/
 
-Please cite this book when using this code/data. 
+Links to useful Github codes:
+
+Chapter 1
+  — rSVD (N. Ben Erichson): https://github.com/erichson/rSVD
+Chapter 3
+  — SSPOR (Krithika Manohar): https://github.com/kmanohar/SSPOR_pub
+Chapter 7
+  — PDE-FIND (Sam Rudy): https://github.com/snagcliffs/PDE-FIND
+  — DeepKoopman (Bethany Lusch): https://github.com/BethanyL/DeepKoopman
+  — KRONIC (Eurika Kaiser): https://github.com/eurika-kaiser/KRONIC
+Chapter 10
+  — SINDY-MPC (Eurika Kaiser): https://github.com/eurika-kaiser/SINDY-MPC
+  — MLC (Thomas Duriez, Bernd Noack): http://berndnoack.com/MachineLearningControl.php
+
+
+Other codes that we found useful, but have not included in our repository because of copyright:
+
+cvx: http://cvxr.com/cvx/download/
+mp3readwrite: https://labrosa.ee.columbia.edu/matlab/mp3read.html
+