Update files for public use

Updated screenshot and sheet.json to prepare for public use.

CWOD-DAV20/sheet.json

@@ -2,6 +2,7 @@
 	"html": "DAV20.html",
 	"css": "DAV20.css",
 	"authors": "Invincible Spleen, based on Matt Zaldivar's V20 character sheet",
+    "roll20userid": 901082,
 	"preview": "DAV20.png",
 	"instructions": "# Vampire: The Dark Ages Character Sheet\r For use in the classic World of Darkness, 20th Anniversary edition.  Designed to function much like an actual paper sheet would.  With the most notable exception being that you can roll Willpower directy from the sheet.  Also, The Dice Pool section in the center at the bottom allow one to select an Attribute and/or Ability to roll; The Other Traits may also be seleceted in the Ability drop down.  All rolls from the sheet are of the from {Xd10}>Df1, where X is the number of dice and D is the difficulty.  NOTE: These rolls do not recognize botches or specialties. Further, the rolls will prompt the user to modify the number of dice rolled and set the difficulty.  The defaults for these are 0 and 6 respectively.  Also, click on the Virtues Conscience or Self-Control to change to Conviction and Instinct, repectively, click again to change back."
 }