After an Italian configuration for GhostDoc there's now also a Spanish configuration available. As mentioned for the Italian version, I cannot comment on the quality. Also, please note that GhostDoc is intended for English documentation, which means that tweaking it for other languages is likely to run into problems sooner or later.
On the other hand, a lot can be achieved with the help of some clever custom rules, so I recommend to try out the Spanish configuration. As usual, exporting the current configuration as a backup is definitely not a bad idea.