docs: add french language to documentation

[Strawbang]

Context

Hello, i just translate the documentation official in french

Choices

Test instructions

Checklist before requesting a review

• [ x] I have performed a self-review of my code
• [ x] I've added documentation about this change to the README.
• [x ] I've not introduced breaking changes.

[thijsvanloef]

Hi Strawbang, thank you for taking the time to translate, if you are able to, are you willing to also translate the docusaurus docs?
https://palworld-server-docker.loef.dev/help-translate/

This is because i am planning on sunsetting these docs, and moving everything to docusaurus

[Strawbang]

Hi Strawbang, thank you for taking the time to translate, if you are able to, are you willing to also translate the docusaurus docs? https://palworld-server-docker.loef.dev/help-translate/

This is because i am planning on sunsetting these docs, and moving everything to docusaurus

Thanks you, I can also translate. Do you think I should open a new PR for the next stage?

[thijsvanloef]

Yes please open a new PR for that change :)

[thijsvanloef]

I was unable to fix the links in markdown, @Strawbang do you mind looking over those?

[Strawbang]

I was unable to fix the links in markdown, @Strawbang do you mind looking over those?

Yes i go to check the links