Updated french translation

[Gilles Florentin]

Hello,

First of all, congratulations for sharing this tool, I've started using a couple of days ago and it looks really amazing. BRAVO!!

I've 2 questions anyway: 

- French translation has been amemded using this collaboration link. How can it be committed?

- Second question: is it possible to add custom statistics (for example the number of shots on goal posts or crossbar)?

Thanks in advance

Gilles