Update README.md

Author: lhoestq

datasets/fquad/README.md

@@ -165,6 +165,8 @@ Illuin Technology:  [https://fquad.illuin.tech/](https://fquad.illuin.tech/)
 
 The FQuAD dataset is licensed under the [CC BY-NC-SA 3.0](https://creativecommons.org/licenses/by-nc-sa/3.0/fr/) license.
 
+It allows personal and academic research uses of the dataset, but not commercial uses. So concretely, the dataset cannot be used to train a model that is then put into production within a business or a company. For this type of commercial use, we invite FQuAD users to contact [the authors](https://www.illuin.tech/contact/) to discuss possible partnerships.
+
 ### Citation Information
 
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