Added a bit of info to the README

README.md

@@ -1,3 +1,10 @@
 # pd-buddy-pcb
 
-PD-Buddy circuit board
+This is the circuit board for the PD Buddy Sink, a device which aims to make
+USB Power Delivery accessible to any electronics hobbyist.
+
+The PCB is made with [KiCad](http://kicad-pcb.org/), so you'll need that if you
+want to make any changes.
+
+PD Buddy Sink is Copyright (C) 2017 Clayton G. Hobbs, and made available under
+the CERN Open Hardware Licence v1.2.  See LICENSE for more information.