downloaded zip flare-game-master from github incomplete

downloaded zip flare-game-master from github incomplete

I'm trying to learn how to use the Tiled map editor on Windows.  Based on the error messages I receive from Tiled when I try to open the flare maps, I think I need the contents of the "tiled" folder from the flare-game repository on Github (https://github.com/clintbellanger/flare-game).  However, when I click "Download Zip" on the Github webpage, it doesn't pack up all the flare-game files, only the folders "distribution" and "mod", but not "art-src", or "tiled".  Am I doing something wrong?  I'd hate to have to download the tiled folder file-by-file.