Image URLs aren't built with relative links

[benjamincharity]

When a user downloads the zip file to try this out, the image links are all broken as they seem to point to the path of whoever actually ran the build script. So rather than pointing to the project directory, it is using a path starting back at the user directory (which in the pre-built version points to a user directory that doesn't exist on my machine).

https://github.com/tonyganch/marked-emojis/blob/master/scripts-maker.js#L34

If I build it on my own machine, the links are correct.