Add more themes/categories to unsplash flavour

flavours/unsplash.flavour/install.sh

@@ -4,7 +4,7 @@ echo "~> Grabbing a random image from unsplash.com..."
 
 mkdir -p /mnt/etc/wallpapers/
 
-for tag in {forest,ocean,sky}; do
+for tag in {forest,ocean,sky,snow,architecture,technology}; do
     wget $(curl https://unsplash.com/search/photos/$tag | grep -oE 'content="http://images.unsplash.com/photo-([a-zA-Z0-9_\\-]*)' | sed -e 's/content="//g' | shuf -n 1) -O /mnt/etc/wallpapers/$tag-$(uuidgen).jpg
 done