Add the dataset stringr::sentences

[maurolepore]

Just a reminder that stringr::sentences has not yet been added to data/ (despite #43). There are already may datasets in data/ -- suggesting there is a procedure already in place. Is there anything I can do?
I would add the following line in data-raw/data.R

oraciones <- stringr::sentences
usethis::use_data(oraciones, overwrite = TRUE) 

And I would do that for all datasets. That way data-raw/data.R clearly shows where each dataset comes from and the data is efficiently compressed during save into data/.

[rivaquiroga]

Al parecer no se han agregado porque no estaban traducidas las oraciones que componen ese dataset