updated README with more info

README.md

@@ -1,4 +1,20 @@
 # Deckcard
 # The deck shuffeling and card drawing program
 
-Better description to come (you know, once I actually build the thing)
+Deckcard is a simple deck shuffeling and card drawing program, its designed to use deck definition files (written as a JSON object filled with only named arrays. 
+
+An example of a deck definition file:
+
+```
+{
+"value":[ "A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"],
+"suit":[ "♥", "♣", "♠", "♦"]
+}
+```
+
+Using this you can make all kinds of decks. 
+
+Things not yet supported:
+  * Unique cards
+  * Multipul card classes
+  * Mixing decks