Merge pull request #76 from wkentaro/fix-readme-data-link

Fix link for VOC2007 data

README.md

@@ -146,9 +146,9 @@ Apologies if I've left your method off this list. Feel free to contact me and as
 1. Download the training, validation, test data and VOCdevkit
 
 	```Shell
-	wget http://pascallin.ecs.soton.ac.uk/challenges/VOC/voc2007/VOCtrainval_06-Nov-2007.tar
-	wget http://pascallin.ecs.soton.ac.uk/challenges/VOC/voc2007/VOCtest_06-Nov-2007.tar
-	wget http://pascallin.ecs.soton.ac.uk/challenges/VOC/voc2007/VOCdevkit_08-Jun-2007.tar
+	wget http://host.robots.ox.ac.uk/pascal/VOC/voc2007/VOCtrainval_06-Nov-2007.tar
+	wget http://host.robots.ox.ac.uk/pascal/VOC/voc2007/VOCtest_06-Nov-2007.tar
+	wget http://host.robots.ox.ac.uk/pascal/VOC/voc2007/VOCdevkit_08-Jun-2007.tar
 	```
 	
 2. Extract all of these tars into one directory named `VOCdevkit`