add acknowledgements

README.md

@@ -4,8 +4,11 @@ This repository contains the code for 🦣 MAMMOTH, the modular translation tool
 This library is built on top of OpenNMT-py.
 [OpenNMT-py](https://github.com/OpenNMT/OpenNMT-py) is the [PyTorch](https://github.com/pytorch/pytorch) version of the [OpenNMT](https://opennmt.net) project, an open-source (MIT) neural machine translation framework. It is designed to be research friendly to try out new ideas in translation, summary, morphology, and many other domains. Some companies have proven the code to be production ready.
 
+### Documentation
 The original ONMT-py documentation is available [here](https://opennmt.net/OpenNMT-py/).  
 Our own modifications (currently-under-development) are documented [here](https://helsinki-nlp.github.io/mammoth/).
 
 FINAL NOTE: We would appreciate it A LOT if you report issues with this repo and/or the documentation 
 
+### Acknowledgements
+We thank the NVIDIA AI Technology Center Finland for their help with the multi-gpu/node implementation.