We tried, but could not find /doku.php?id=doku.php.faq:everydayuse:how_do_i_beautify_the_mailname_of_a_public_room&do=login§ok=10e3c5e20f587a793c7619bd9b27ebd2
But hey, you don't have to leave empty handed!
Here are some things you can try instead: