Update Spanish.ini

[c-sanchez]

I'm a bit new with how works github, I did a copy of freeshooter repository to update the Spanish.ini

https://github.com/c-sanchez/freeshooter/blob/840c1be24d7180d600000da7a41c43e431b76a12/bin/i18n/Spanish.ini

I guess is better if I can modify this file directly in the freeshooter repository or if I can make a merge request or something.
I've used previously the option "Commit directly to the master branch." but I don't know if this notify or what.

[henrypp]

If you cant understant github merge, you can send Spanish.ini file directly to my email.