Orphan prepositions

[ptica]

Hi, thank you for an awesome library!

Please, is there a fix or settings to add non-breakable spaces after double chars prepositions as well?

[mundschenk-at]

There is currently no such feature for all 2-character words, but you might want to experiment with the dewidowing settings. Targetting English preopositions specifically is something I would not like to do, as the library tries to be language agnostic.