Fix a wrong title

Author: muupan

README.md

@@ -59,7 +59,7 @@ If you want to inform the maintainer of a new paper, feel free to contact [@mooo
  - I. Osband, C. Blundell, A. Pritzel, and B. Van Roy, **Deep Exploration via Bootstrapped DQN**, arXiv, 2016. [arXiv](http://arxiv.org/abs/1602.04621)
  - T. Salimans and D. P. Kingma, **Weight Normalization : A Simple Reparameterization to Accelerate Training of Deep Neural Networks**, arXiv, 2016. [arXiv](http://arxiv.org/abs/1602.07868)
  - S. Gu, T. Lillicrap, I. Sutskever, and S. Levine, **Continuous Deep Q-Learning with Model-based Acceleration**, arXiv, 2016. [arXiv](http://arxiv.org/abs/1603.00748)
- - J. Heinrich and D. Silver, **Deep Reinforcement Learning from Self-Play in Imperfect-Information Games David Silve**, arXiv, 2016. [arXiv](http://arxiv.org/abs/1603.01121)
+ - J. Heinrich and D. Silver, **Deep Reinforcement Learning from Self-Play in Imperfect-Information Games**, arXiv, 2016. [arXiv](http://arxiv.org/abs/1603.01121)
 
 ### Deep Policy