Relative Paths
A relative path specifies a files location in relation to the location of the current document.
If the file is in the same folder as the current document, you do not have to specify the folder name.
If the file is in a subfolder of the folder of the
current document, you have to
include the name of the subfolder.
If you want to go one
level up the folder tree, you start the relative path with a double period (..)
and then provide the name of the file.