* - Added README.fr.md in the root folder
- Translated the whole leçon 2.1 <predict plant growth>
* just added the whole content
* small updates in root folder
* Unnecessary shields removed and some corrections have been made from Charles's review
* Translation of all lessons of the root README
* Translation of for-teachers.md
* Translation of hardware.md
* Translation of CODE_OF_CONDUCT.md
* Translation of CODE_OF_CONDUCT.md
* Implement suggested changes from the charles's PR review
* Implement suggested changes from the charles's PR review
* Implement suggested changes from the charles's PR review
* Implement suggested changes from the charles's PR review
* Changed the path to the translated README because they were not working from the translated ones
* Small change
* Resolved unworking links in hardware.fr.md
* Removed the shields where it was not necessary as Jim suggested
* small correction
* Removed the shields and comments as requested by Jim
* small update
Co-authored-by: Jim Bennett <jim.bennett@microsoft.com>