Merge pull request #125 from Nickil21/auto_enc_fix

ENH: correct comment in autoencoder NB

notebooks/3_NeuralNetworks/autoencoder.ipynb

@@ -88,7 +88,7 @@
     "    # Encoder Hidden layer with sigmoid activation #1\n",
     "    layer_1 = tf.nn.sigmoid(tf.add(tf.matmul(x, weights['encoder_h1']),\n",
     "                                   biases['encoder_b1']))\n",
-    "    # Decoder Hidden layer with sigmoid activation #2\n",
+    "    # Encoder Hidden layer with sigmoid activation #2\n",
     "    layer_2 = tf.nn.sigmoid(tf.add(tf.matmul(layer_1, weights['encoder_h2']),\n",
     "                                   biases['encoder_b2']))\n",
     "    return layer_2\n",
@@ -96,7 +96,7 @@
     "\n",
     "# Building the decoder\n",
     "def decoder(x):\n",
-    "    # Encoder Hidden layer with sigmoid activation #1\n",
+    "    # Decoder Hidden layer with sigmoid activation #1\n",
     "    layer_1 = tf.nn.sigmoid(tf.add(tf.matmul(x, weights['decoder_h1']),\n",
     "                                   biases['decoder_b1']))\n",
     "    # Decoder Hidden layer with sigmoid activation #2\n",