Added better controls (hard drop, rotate only once) and short text on the page about how to control the game.

index.html

@@ -16,6 +16,14 @@
 	</head>
 
 	<body>
-		<canvas id="tetris-board" height="720" width="480" />
+		<div><canvas id="tetris-board" height="720" width="480" /></div>
+
+		<div>
+			<ul style>Controls:
+				<li>a,d - left/right</li>
+				<li>w   - rotate</li>
+				<li>s   - down</li>
+			</ul>
+		</div>
 	</body>
 </html>