update README.md

adding new course from UC Berkeley

README.md

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 17.  [Statistical Machine Learning - CMU](https://www.youtube.com/watch?v=azaLcvuql_g&list=PLjbUi5mgii6BWEUZf7He6nowWvGne_Y8r) by Prof. Larry Wasserman
 18.  [Deep Learning Course](https://www.college-de-france.fr/site/en-yann-lecun/course-2015-2016.htm) by Yann LeCun (2016)
 19.  [Bay area DL school](http://www.bayareadlschool.org/) by Andrew Ng, Yoshua Bengio, Samy Bengio, Andrej Karpathy, Richard Socher, Hugo Larochelle and many others @ Stanford, CA (2016)
+20.[Designing, Visualizing and Understanding Deep Neural Networks-UC Berkeley](https://www.youtube.com/playlist?list=PLkFD6_40KJIxopmdJF_CLNqG3QuDFHQUm)
 ### Videos and Lectures
 
 1.  [How To Create A Mind](https://www.youtube.com/watch?v=RIkxVci-R4k) By Ray Kurzweil