Merge pull request floodsung#72 from ahmaurya/patch-1

Correct broken link

Author: floodsung

README.md

@@ -22,7 +22,7 @@ I would continue adding papers to this roadmap.
 
 ## 1.0 Book
 
-**[0]** Bengio, Yoshua, Ian J. Goodfellow, and Aaron Courville. "**Deep learning**." An MIT Press book. (2015). [[pdf]](https://github.com/HFTrader/DeepLearningBook/raw/master/DeepLearningBook.pdf) **(Deep Learning Bible, you can read this book while reading following papers.)** :star::star::star::star::star:
+**[0]** Bengio, Yoshua, Ian J. Goodfellow, and Aaron Courville. "**Deep learning**." An MIT Press book. (2015). [[html]](http://www.deeplearningbook.org/) **(Deep Learning Bible, you can read this book while reading following papers.)** :star::star::star::star::star:
 
 ## 1.1 Survey