@url{https://www.gnu.org/philosophy/free-sw.html, free software}
licenced under @url{https://www.gnu.org/licenses/gpl-3.0.html, GNU GPLv3}.
-Please send questions, bug reports and patches to @url{gocheese@@cypherpunks.ru}.
+Please send questions, bug reports and patches to @url{mailto:gocheese@@cypherpunks.ru}.
@insertcopying