updates

README.md

@@ -59,7 +59,7 @@ Recognition](http://nlp.stanford.edu/~socherr/pa4_ner.pdf) [zip](http://nlp.stan
 12.  [Bi-directional RNN](http://www.di.ufpe.br/~fnj/RNA/bibliografia/BRNN.pdf)
 13.  [LSTM](http://web.eecs.utk.edu/~itamar/courses/ECE-692/Bobby_paper1.pdf)
 14.  [GRU - Gated Recurrent Unit](http://arxiv.org/pdf/1406.1078v3.pdf)
-15.  [GFRNN][(http://arxiv.org/pdf/1502.02367v3.pdf)][.](http://jmlr.org/proceedings/papers/v37/chung15.pdf)[.](http://jmlr.org/proceedings/papers/v37/chung15-supp.pdf)
+15.  [GFRNN][(http://arxiv.org/pdf/1502.02367v3.pdf)] [.](http://jmlr.org/proceedings/papers/v37/chung15.pdf) [.](http://jmlr.org/proceedings/papers/v37/chung15-supp.pdf)
 
 
 ### Tutorials