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* Rename index.mdx to index.md

* With saved modifs

* Address review comment

* Treat all files

* .mdx -> .md

* Remove special char

* Update utils/tests_fetcher.py
Co-authored-by: Lysandre Debut <lysandre.debut@reseau.eseo.fr>

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Co-authored-by: Lysandre Debut <lysandre.debut@reseau.eseo.fr>

* Add ConvNeXt V2 to transformers
* TF model is separated from the PR to fix issues

* docs: Fix typo in ONNX parser help: 'tolerence' => 'tolerance'

* docs: Resolve many typos in the English docs

Typos found via 'codespell ./docs/source/en'

* [ custom_models.mdx ] - Translated to Portuguese the custom models tutorial.

* [ run_scripts.mdx ] - Translated to Portuguese the run scripts tutorial.

* [ converting_tensorflow_models.mdx ] - Translated to Portuguese the converting tensorflow models tutorial.

* [ converting_tensorflow_models.mdx ] - Translated to Portuguese the converting tensorflow models tutorial.

* [ serialization.mdx ] - Translated to Portuguese the serialization tutorial.