transformers

5807054b - [research] link to the XTREME-S paper (#16519)

[research] link to the XTREME-S paper (#16519) * [research] link to the XTREME-S paper * Update examples/research_projects/xtreme-s/README.md Co-authored-by: Lysandre Debut <lysandre.debut@reseau.eseo.fr> Co-authored-by: Lysandre Debut <lysandre.debut@reseau.eseo.fr>