Adding Practical Deep learning Course (#2573)

* Adding Practical Deep learning Course

* Deep learning course by Harvard

* Adding Deep learning course

* Linting

* Intro to Algorithms by Charles Leiserson - Writer of Introduction to Algorithms

free-courses-en.md

@@ -47,6 +47,7 @@
 ### Algorithms & Data Structures
 
 * [Berkeley University CS 61B: Data Structures](http://datastructur.es/sp16/)
+* [Introduction to Algorithms (SMA 5503)](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-046j-introduction-to-algorithms-sma-5503-fall-2005) - Charles Leiserson
 * [Stanford University Algorithms: Design and Analysis, Part 1](http://online.stanford.edu/course/algorithms-design-and-analysis-part-1)
 * [Stanford University Algorithms:Algorithms: Design and Analysis, Part 2](http://online.stanford.edu/course/algorithms-design-and-analysis-part-2)
 
@@ -130,6 +131,7 @@
 
 * [Convolutional Neural Networks for Visual Recognition](http://cs231n.github.io)
 * [Deep Learning for Natural Language Processing](http://cs224d.stanford.edu)
+* [Practical Deep Learning For Coders taught](http://www.fast.ai) - Jeremy Howard
 * [Self-Paced Courses for Deep Learning ](https://developer.nvidia.com/deep-learning-courses)
 * [Unsupervised Feature Learning and Deep Learning](http://deeplearning.stanford.edu/tutorial)
 * [What is Deep Learning](https://www.udacity.com/course/deep-learning--ud730)