docs: Translated docs into French

[Nekika]

Tried to translate as better as I could, don't hesitate to ask for changes

[codecov-commenter]

Codecov Report

Merging #117 into master will increase coverage by 0.09%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #117      +/-   ##
==========================================
+ Coverage   93.52%   93.61%   +0.09%     
==========================================
  Files          13       13              
  Lines         417      423       +6     
  Branches       79       81       +2     
==========================================
+ Hits          390      396       +6     
  Misses         24       24              
  Partials        3        3              

Impacted Files	Coverage Δ
lib/index.js	100.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 2b09efc...59837b0. Read the comment docs.

[mathieunicolas]

haha, thanks ! I forked two days ago and I was about to start translating in french ! Perfect timing

[benjamincanac]

@Nekika Thanks for the PR! Could you also add french to the locales?

Thank you 😃

[Nekika]

@benjamincanac done ! :)

[Geminii]

@benjamincanac i think you merged it a little bit to faster. I was on review on it, and we can improve a lot of sentences. Some sentences contains careless mistakes ;)

[Nekika]

@benjamincanac i think you merged it a little bit to faster. I was on review on it, and we can improve a lot of sentences. Some sentences contains careless mistakes ;)

You're right, I've just seen some mistakes that I'll fix asap.
If some sentences are not clear enough, don't hesitate proposing better ones ! :)

[benjamincanac]

@Geminii @Nekika Sorry about that! Thought it was done.