Change the README from soccer to football

[gustavohalm]

On the README.md we should change from soccer to football, because is the real name of the sport.

Thanks,
Gustavo

[zjs820]

+1

[AlainPilon]

And once the project has an American football dataset, it will not create confusion at all... You have to trust search engines to match football<=>soccer and being syntax incorrect is the lesser fo two evils.