Update README.md

README.md

@@ -149,7 +149,7 @@ Please feel free to [pull requests](https://github.com/kjw0612/awesome-deep-visi
 ### Semantic Segmentation
 ![semantic_segmantation](https://cloud.githubusercontent.com/assets/5226447/8452076/0ba8340c-2023-11e5-88bc-bebf4509b6bb.PNG)
 (from Jifeng Dai, Kaiming He, Jian Sun, BoxSup: Exploiting Bounding Boxes to Supervise Convolutional Networks for Semantic Segmentation, arXiv:1503.01640.)
-* PASCAL VOC2012 Challenge Leaderboard (01 Sep 2016)
+* PASCAL VOC2012 Challenge Leaderboard (01 Sep. 2016)
   ![VOC2012_top_rankings](https://cloud.githubusercontent.com/assets/3803777/18164608/c3678488-7038-11e6-9ec1-74a1542dce13.png)
   (from PASCAL VOC2012 [leaderboards](http://host.robots.ox.ac.uk:8080/leaderboard/displaylb.php?challengeid=11&compid=6))
 * Adelaide