fix typos and french documentation

[ccoVeille]

• chore: fix typos in code
• chore: GitHub is a trademark
• chore: fix documentation in French

Description

I'm a native French speaker, I noticed some errors in the French documentation.

I started marking changes, then I noticed a few errors in code and in the usage of GitHub trademark.

So I'm opening a PR

Contribution Checklist:

• [X] The pull request only addresses one issue or adds one feature.
• [X] The pull request does not introduce any breaking changes
• [X] I have added screenshots or gifs to help explain the change if applicable.
• [X] I have read the contribution guidelines.
• [ ] Create an issue and link to the pull request.

Note: Keeping the PR small and focused helps make it easier to review and merge. If you have multiple changes you want to make, please consider submitting them as separate pull requests.

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[ccoVeille]

I didn't respect the last item, because creating an issue for fixing typos would be overkill.

[helloanoop]

Merged. Thanks @ccoVeille !