GitLab

* [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>

* Updates the default branch from master to main

* Links from `master` to `main`

* Typo

* Update examples/flax/README.md
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* update results

* per-language metrics

* Format the per-language metrics

* Minor fixes

* Fix vocab union

* Update examples/research_projects/xtreme-s/README.md
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>

* Update README

* unused import
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>