I have the very same question. I just started using httrack with all options
let on standard. I tried to download
<https://github.com/armel/uv-k1-k5v3-firmware-custom/wiki> , but  I got only a
index.html from httrack and some files, where the actual wiki page is empty (0
bytes):
f:\...\F4HWN custom firmware
wiki\github.com\armel\uv-k1-k5v3-firmware-custom\

Would anyone give me advice how to save this little wiki for offline use?