French translation for Tuto 1

[Tititesouris]

Participates in #267

Let me know if you have any feedback.
I had to rephrase some parts to make it easier to understand in French, like adding the notion of "cursor" for the "current location".

[Lucas-C]

Super début de trad !
Beau boulot et merci 😉

[codecov]

Codecov Report

Merging #276 (46dd76c) into master (9e6811e) will not change coverage.
The diff coverage is n/a.

❗ Current head 46dd76c differs from pull request most recent head 30a88b0. Consider uploading reports for the commit 30a88b0 to get more accurate results

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  Coverage   87.09%   87.09%           
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  Files          16       16           
  Lines        3821     3821           
  Branches      815      815           
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  Hits         3328     3328           
  Misses        319      319           
  Partials      174      174           

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[Tititesouris]

Changes requested were done. I also noticed that language naming was inconsistent/incorrect in the files. Given that I speak enough German and Spanish to correct those, I did. I left "Italian" alone because I'm not sure what translation should be there instead.

[Lucas-C]

Thank you! Merging this now

@allcontributors please add @Tititesouris for translation

[allcontributors]

@Lucas-C

I've put up a pull request to add @Tititesouris! 🎉