Add `public` folder to publish graph

public/README.txt

public/config.json

public/css/style.css

public/css/tablet.css

public/data.json

public/htaccess_example

public/images/CC.png

public/images/blank.gif

public/images/fancybox_loading.gif

public/images/fancybox_sprite.png

public/images/info.png

public/images/jisc-logo-small.png

public/images/oii.png

public/images/oii_brand.png

public/images/oii_text.png

public/images/rainbow.png

public/images/sprite.png

public/images/zoom_in.png

public/images/zoom_out.png

public/images/zoom_reset.png