fix up README slightly.
|Purpose of this icon theme is to extend the base icon theme that follows the Tango style guidelines for specific purposes. This would include OSD messages, panel system/notification area, and possibly menu icons.|
|Icons follow the naming specification, but have a -symbolic suffix, so only applications specifically looking up these symbolic icons will render them. If a -symbolic icon is missing, the app will fall back to the regular name.|
|Primitive build instructions|
|Running the render.rb script will chop up the "source" SVG into individual icons.|
|`create-icon-theme.sh gnome-osd-icons` will then create buildable theme in output/gnome-osd-icons|