Update README_fr.md
Update README_fr.md

fix a typo
blackout314/moonraker,riaan53/moonraker,LateRoomsGroup/moonraker,testingbot/moonraker,blackout314/moonraker,tegud/moonraker,tegud/moonraker,dandv/moonraker,testingbot/moonraker,dandv/moonraker,riaan53/moonraker,LateRoomsGroup/moonraker