First, thank you for spending your time and energy on making Misago more accessible for other people. Your help is much appreciated!
Now, before you announce this fact to rest of the community, please keep in mind following when writing your post:
Exception to "All posts and threads must be in English" rule
You are allowed to make your thread name in two languages, here's example:
misago.pl - Polish Misago Support / Polski support Misago!
Note this only counts for thread names. Whatever you post must be completely in English. Multi-langual posts will be deleted, repeated offenders will find their posting rights revoked. So be nice and follow rules.
If you fear this will make you unable to reach your's language native speakers, don't worry. It extremely unlikely for people who can't communicate in English to browse English forums.
You are more likely to gain interest from them by announcing your initiative on forums that speak in your language, than here.
Thank you!