german docs translation
Author: flozi00
Pull request: yes

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Models:

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@sgugger i am not sure about using "du / ihr" or "sie".
"Du" is more personal, while "sie" is more formal


Comments:
_The documentation is not available anymore as the PR was closed or merged._

I think it's preferable to use the more formal option, but in most cases, I'd prefer to reformulate the sentences to use the first person plural (wir) unless the sentence actually describes an action the user has to take. We're using the same style for the French translation which also has two pronouns for "you".

okay, then i will rewrite to "wir" and "sie"

At the moment its still mixed with du und sie

Let me know when you're done and thanks a lot for diving into German translation! (Sorry should have begun with that!)

Thank you, @flozi00, for starting the German translation! 🤗 We created a new issue to track German translations (#18564).  

@sgugger LGTM once the translation is done. 

ready to review @sgugger