updates vid4 dataset link

Author: msmsajjadi

README.md

@@ -11,7 +11,7 @@ This is the official repository for the [Frame-Recurrent Video Super-Resolution]
 <https://vimeo.com/album/5053944>
 
 ### Vid4 dataset
-<https://owncloud.tuebingen.mpg.de/index.php/s/2AFqCHjHFtqezR9>
+<https://people.tuebingen.mpg.de/msajjadi/FRVSR_Vid4.zip>
 
 ## Paper and Poster
 - Paper (arXiv link): <https://arxiv.org/abs/1801.04590>