adding translation of the README file in French

[leaggg]

🤔 This is a

• [ ] Feature
• [ ] Bug
• [ ] Documentation Update
• [X] Translation

✍ Description

• I translated the README file in French

Added to documentation

• [ ] readme file
• [X] No documentation needed

🐱‍💻 Use a meme/gif to describe how you feel for contributing (optional)

Related to #13

[muchirijane]

Create a feature flag and compare it to the develop branch. The contribution.md file has step by step guide on how to do that. 👍🏽