updated 204 tutorial to new signature of LSTM()

Tutorials/CNTK_204_Sequence_To_Sequence.ipynb

@@ -509,7 +509,7 @@
     "\n",
     "    # we now create an LSTM_cell function and call it with the input and placeholders\n",
     "    LSTM_cell = LSTM(output_dim)\n",
-    "    f_x_h_c = LSTM_cell(input, (dh, dc))\n",
+    "    f_x_h_c = LSTM_cell(dh, dc, input)\n",
     "    h_c = f_x_h_c.outputs\n",
     "\n",
     "    # we setup the recurrence by specifying the type of recurrence (by default it's `past_value` -- the previous value)\n",