Added "Reinforcement Learning: An Introduction (2nd Edition)"

README.md

@@ -224,6 +224,8 @@ Each day I take one subject from the list below, read it cover to cover, take no
 	- [GitHub repository](https://github.com/jasebell/mlbook)
 - [ ] [Learning from Data](https://www.amazon.com/Learning-Data-Yaser-S-Abu-Mostafa/dp/1600490069)
 	- [Online tutorials](https://work.caltech.edu/telecourse.html)
+- [ ] [Reinforcement Learning: An Introduction (2nd Edition)](https://webdocs.cs.ualberta.ca/~sutton/book/the-book-2nd.html)
+	- [GitHub repository](https://github.com/ShangtongZhang/reinforcement-learning-an-introduction)
 
 ## Kaggle knowledge competitions
 - [ ] [Kaggle Competitions: How and where to begin?](https://www.analyticsvidhya.com/blog/2015/06/start-journey-kaggle/)