Translation/italian: added pipeline_tutorial.mdx [Issue: #17459] (#17507)
* added toctree.yml file
* first translation
* added pipeline_tutorial.mdx translation
added pipeline_tutorial.mdx
updated _toctree.yml
* updated pipeline_tutorial.mdx
* updated _toctree.yml
Updated preprocessing and training
* updated preprocessing.mdx
start translation
* Update _toctree.yml
* Delete preprocessing.mdx
* Update _toctree.yml
* updated _toctree.yml
* added preprocessing
* Update _toctree.yml
* updated _toctree.yml
* undo
* Revert "undo"
This reverts commit 5d38d768752dc80918bf60ada9d185f98b742520.
* Revert "Revert "undo""
This reverts commit 8aa0830b587f915ca7d154ebca282b782e82bd92.