updated README

Author: Fangchang Ma

README.md

@@ -15,7 +15,7 @@ This repo can be used for training and testing of
 The original Torch implementation of the paper can be found [here](https://github.com/fangchangma/sparse-to-dense). This PyTorch version is under development and is subject to major modifications in the future. 
 
 ## Thanks
-Thanks to [Tim](https://github.com/timethy) for his contribution.
+Thanks to [Tim](https://github.com/timethy) and [Akari](https://github.com/AkariAsai) for their contribution.
 
 ## Contents
 0. [Requirements](#requirements)