Translation italian: multilingual.mdx
# What does this PR do?

* added multilingual.mdx
* updated _toctree.yml

See issue: [#17459](https://github.com/huggingface/transformers/issues/17459)

## Before submitting
- [X] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
- [X] Did you read the [contributor guideline](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md#start-contributing-pull-requests),
      Pull Request section?
- [X] Was this discussed/approved via a Github issue or the [forum](https://discuss.huggingface.co/)? Please add a link
      to it if that's the case.
- [X] Did you make sure to update the documentation with your changes? Here are the
      [documentation guidelines](https://github.com/huggingface/transformers/tree/main/docs), and
      [here are tips on formatting docstrings](https://github.com/huggingface/transformers/tree/main/docs#writing-source-documentation).


## Who can review?

Anyone in the community is free to review the PR once the tests have passed. Feel free to tag
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@omarespejel @sgugger 
_The documentation is not available anymore as the PR was closed or merged._<|||||>Hi @nickprock! I just had a chance to have a look at your PR, can I ask you if you could fix a couple of things?
- "Tuttavia non tutti gli usi dei modelli multilingua sono diversi" this sentence is a bit difficult to understand written like this, I would try something like: "Non tutti gli utilizzi dei modelli multilingue sono però diversi"
- I see that sometimes you use 'multilingua' and sometimes 'multilingue' maybe I would standardise it with 'multilingue', what do you think?
- "non le utilizzano" -> "non li utilizzano"
- "del input_ids" -> "dell'input_ids"
- "perchè" -> "perché"
- "Questo tensorre dovrebbe" -> "Questo tensore dovrebbe"
- "identificare ul linguaggio" -> "identificare il linguaggio"
- I would translate also these parts: (Many-to-many multilingual machine translation, 50 languages), (Many-to-one multilingual machine translation, 50 languages), ...
- "Applica il tokenizer sul testo" -> "Applica il tokenizer al testo"
- "MBart fforza" -> "MBart forza"
- "nel target language" -> "nella lingua target" or "nella lingua obiettivo"
Thanks!! 🎉<|||||>Thanks @mfumanelli I will try ti fix it tomorrow.<|||||>Hi @mfumanelli, how would you translate "Masked Language Modeling"? I would leave it in English, "Modello di linguaggio mascherato" doesn't sounds good for me.
Thanks<|||||>Yes @nickprock, maybe you can write only the first time you mention it "Modello di linguaggio mascherato (Masked Language Model, in inglese)", and from then on call it by its English name. What do you think?<|||||>I agree<|||||>This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the [contributing guidelines](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md) are likely to be ignored.<|||||>I fixed and I'm waiting for the review<|||||>cc @omarespejel 