The readme seems to have some issue. I think either a cd to the autorun directory is needed or the link command is referring to the twirssi.pl where we were not told to put it. Sorry if I misunderstand, but I think there is a consistency issue here.
If you want it to automatically load with irssi, create an autorun dir: mkdir autorun
And create a symlink in it: ln -s ../twirssi.pl autorun
The readme seems to have some issue. I think either a cd to the autorun directory is needed or the link command is referring to the twirssi.pl where we were not told to put it. Sorry if I misunderstand, but I think there is a consistency issue here.