Added Data Structure section

Author: alcere

README.md

@@ -27,6 +27,9 @@ But knowing the stuff will help you become better! :muscle:*
 - :book: [Grokking Algorithms](https://www.goodreads.com/book/show/22847284-grokking-algorithms-an-illustrated-guide-for-programmers-and-other-curio)
 - [Sorting Algorithms](https://visualgo.net/en/sorting)
 
+### Data Structures
+- :movie_camera: [UC Berkeley, Data Structures Course](https://archive.org/details/ucberkeley-webcast-PL-XXv-cvA_iAlnI-BQr9hjqADPBtujFJd)
+
 ### Numbers
 - :page_facing_up: [Floating Point Guide](http://floating-point-gui.de/)
 - :page_facing_up: [Basic Number Theory Every Programmer Should Know...](https://www.codechef.com/wiki/tutorial-number-theory/)