Provide examples of what they all represent, and expand on the
descriptions of them in a few places.
Move references to their equivalents from `GnomeVFS` to lower down in
the documentation, since `GnomeVFS` has been deprecated for many years
now, and is unlikely to be pertinent to most readers.
Signed-off-by: Philip Withnall <pwithnall@gnome.org>
This should clarify things a little for users of language bindings, who
don’t directly use `.pc` files.
Signed-off-by: Philip Withnall <pwithnall@gnome.org>