Translate es/Docs.html and change the title of 'Inicio' 

Translate es/Docs.html and change the title of "Inicio" (Home) from 'Main site' to 'Sitio principal'.

As I didn't know the Bukkit API and I am not a java developer, only translate all after the "-" (e.g: "Player getKiller() - returns the killer" only translate "returns the killer")

Don't translate "Events" (h2) and the event: getCause().