Add descriptive paragraph to Craps game

src/components/CrapsGame.tsx

@@ -316,6 +316,9 @@ const CrapsGame: React.FC<CrapsGameProps> = ({
           <CardDescription className="text-lg">In the game of Craps, we roll two dice, and note the sum S. In the traditional game, if S is 2, 3, or 12, you lose immediately; if the S is 7 or 11, you win immediately, and the game continues otherwise.</CardDescription>
         </CardHeader>
         <CardContent className="space-y-6">
+          <p className="text-base text-center text-muted-foreground">
+            On this page, you can: (a) play the classic game; (b) make your own win/lose conditions and play; (c) simulate the game over a number of rounds to note win/loss statistics and the average game duration.
+          </p>
           {/* Simulation Controls */}
           <Card className="bg-accent/5">
             <CardHeader className="flex flex-row items-center justify-between">