Update mlp.py

Corrected typo in comment: "compilie" -> "compile"

9- How to imlement a simple neural network with TensorFlow/code/mlp.py

@@ -39,7 +39,7 @@ def generate_dataset(num_samples, test_size=0.33):
     # choose optimiser
     optimizer = tf.keras.optimizers.SGD(learning_rate=0.1)
 
-    # compilie model
+    # compile model
     model.compile(optimizer=optimizer, loss='mse')
 
     # train model