Hello Jakub,
Thank you so much. It would be very beneficial.
We don’t have the capability to accept the polish translation, a WordPress Polish editor must review it.
The best way is that you join the Polish slack channel. They will be able to guide you and give you their process.
Sign up (first time): https://wordpresspopolsku.slack.com/signup/
Team URL: https://wordpresspopolsku.slack.com/ Slack channel for the folks that are involved in the Polish WordPress Community
Note that for most teams, an @chat.wordpress.org address is the easiest way to register. If you don’t have one yet, log in to wordpress.org and follow the instructions on make.wordpress.org/chat/.
Thank you,
Yann
