References to non-existing files

[chdoc]

While working on #5752 (or rather DFHack/scripts#1570) I noticed that there are several locations that reference files that are, as far as I can tell, not part of the install set:

• hack/data/quickfort/aliases-common.txt: https://github.com/DFHack/scripts/blob/56c934eb5d4c957ca731705783a0a43397a9ba2c/internal/quickfort/aliases.lua#L14
• hack/docs/docs/Quickstart.txt: https://github.com/DFHack/scripts/blob/56c934eb5d4c957ca731705783a0a43397a9ba2c/quickstart-guide.lua#L6