Outdated (dead) repository links in 'Installing Tor on Debian/Ubuntu' documentation
The experimental repository links in the 'Installing Tor on Debian/Ubuntu' documentation (https://www.torproject.org/docs/debian) are outdated (and dead). They point to tor-experimental-0.3.1.x (deb) or tor-experimental-0.3.0.x (deb-src), but https://deb.torproject.org/torproject.org/dists/ only contains tor-experimental-0.3.2.x.
As expected, the original links result in a 404 error, changing them manually to tor-experimental-0.3.2.x fixes the problem.