Fix typo

examples/semantic_segmentation/README.md

@@ -19,7 +19,7 @@ labelme data_annotated --labels="$(tr '\n' , < labels.txt)" --nodata
 ./labelme2voc.py labels.txt data_annotated data_dataset_voc
 ```
 
-<img src="data_dataset/JPEGImages/2011_000003.jpg" width="33%" /> <img src="data_dataset/SegmentationClass/2011_000003.png" width="33%" /> <img src="data_dataset/SegmentationClassVisualization/2011_000003.jpg" width="33%" />
+<img src="data_dataset_voc/JPEGImages/2011_000003.jpg" width="33%" /> <img src="data_dataset_voc/SegmentationClass/2011_000003.png" width="33%" /> <img src="data_dataset_voc/SegmentationClassVisualization/2011_000003.jpg" width="33%" />
 
 Fig 1. JPEG image (left), PNG label (center), JPEG label visualization (right)  
 *Note that the reason why the label file is mostly black is it contains only very low label values (ex. `-1, 0, 4, 14`).*