Fix neural_style_tutorial

Signed-off-by: Onur Berk Töre <onurberk_t@hotmail.com>

Author: onurtore

advanced_source/neural_style_tutorial.py

@@ -107,6 +107,7 @@
 def image_loader(image_name):
     image = Image.open(image_name)
     # fake batch dimension required to fit network's input dimensions
+    image = loader(image).unsqueeze(0)
     return image.to(device, torch.float)