[pve-devel] Better translate to Spanish language

[Cesar Peschiera]

Hi developers team

I have as language native the spanish, and i see in PVE that the translate 
to Spanish language have many errors, then, if you want, i can translate it 
to Spanish correctly.

But unfortunately i am not developer, so if you want that i do the work, i 
will need your help for send the patches.

I am at your service when you like

Best regards
Cesar