Since no patches were accepted, I forked the project
(https://codeberg.org/jorgesumle/writefreesoftware.org) and published it
on my website (https://freakspot.net/escribe-programas-libres/). The
main language is Spanish now, but the English translation is also
available there (https://freakspot.net/escribe-programas-libres/en/). If
you want to send me patches, I'll review and accept them there via pull
requests, or you can send them to me by email. If the maintainer of this
projects starts accepting contributions again, I'll gladly contribute
here again.
I mainly contributed i18n support for the website, Spanish translations
and fixes to English articles.