Opps, fix minor error in TDM documentation

gui/index.html

@@ -1237,7 +1237,7 @@ span.mainfunction {color: #993300; font-weight: bolder}
 		<tr class=top><th>Pin</th><th>Signal</th><th>Direction</th></tr>
 		<tr class=odd><td align=center>9</td><td>BCLK</td><td>Output, 11.3 MHz</td></tr>
 		<tr class=odd><td align=center>11</td><td>MCLK</td><td>Output, 22.6 MHz</td></tr>
-		<tr class=odd><td align=center>22</td><td>TX</td><td>Input, 11.3 Mbit/sec</td></tr>
+		<tr class=odd><td align=center>22</td><td>TX</td><td>Output, 11.3 Mbit/sec</td></tr>
 		<tr class=odd><td align=center>23</td><td>WS</td><td>Output</td></tr>
 	</table>
 	<p>Audio from