Minor fix for visualization documentation.
@@ -19,7 +19,7 @@ You can also directly obtain the `pydot.Graph` object and render it yourself,
for example to show it in an ipython notebook :
```python
from IPython.display import SVG
-from keras.utils.visualize_util import model_to_dot
+from keras.utils.vis_utils import model_to_dot
SVG(model_to_dot(model).create(prog='dot', format='svg'))
```
