Update README files to point to arXiv submission.

research/brain_coder/README.md

 # Brain Coder
 
-*Authors: Daniel Abolafia, Quoc Le, Mohammad Norouzi*
+*Authors: Daniel Abolafia, Mohammad Norouzi, Quoc Le*
 
-Brain coder is a code synthesis experimental environment. We provide code that reproduces the results from our recent paper [Code Synthesis with Priority Queue Training](https://openreview.net/forum?id=r1AoGNlC-). See single_task/README.md for details on how to build and reproduce those experiments.
+Brain coder is a code synthesis experimental environment. We provide code that reproduces the results from our recent paper [Neural Program Synthesis with Priority Queue Training](https://arxiv.org/abs/1801.03526). See single_task/README.md for details on how to build and reproduce those experiments.
 
 ## Installation
 

research/brain_coder/single_task/README.md

 # Experiments for ICLR 2018 paper.
 
-[Code Synthesis with Priority Queue Training](https://openreview.net/forum?id=r1AoGNlC-).
+[Neural Program Synthesis with Priority Queue Training](https://arxiv.org/abs/1801.03526).
 
 Runs policy gradient (REINFORCE), priority queue training, genetic algorithm,
 and uniform random search.