Update file README.md

README.md

 # Parallel hyperparameter optimization of spiking neural networks
 
-> [Français](README_fr.md)
-
 > [Back to main](https://gitlab.cristal.univ-lille.fr/tfirmin/mythesis)
 
 This repository contains hyperlinks to redirect the reader to the source code of each chapter from the thesis [Parallel hyperparameter optimization of spiking neural networks](https://theses.fr/s327519).
@@ -51,7 +49,7 @@ $ python3 -m pip install -e ./code/SpikingJelly
 
 ## Run 
 
-The experiments were designed for the [Grid'5000](http://www.idris.fr/jean-zay/jean-zay-presentation.html) using [OAR](https://oar.readthedocs.io/en/2.5/) and [OpenMPI](), on a distributed GPU partition.
+The experiments were designed for the [Grid'5000](http://www.idris.fr/jean-zay/jean-zay-presentation.html) using [OAR](https://oar.readthedocs.io/en/2.5/) and [OpenMPI](https://www.open-mpi.org/), on a distributed GPU partition.
 The `HOSTFILE` contains the addresses of the nodes. The `RANKFILE` contains the mapping between processes and nodes, the processes 0 is dedicated to the master process running the optimization algorithm on a dedicated GPU.
 
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