Update README.md

Author: cszn

README.md

@@ -1,6 +1,6 @@
 
-# DnCNN
-## [Beyond a Gaussian Denoiser: Residual Learning of Deep CNN for Image Denoising](http://www4.comp.polyu.edu.hk/~cslzhang/paper/DnCNN.pdf)
+# [DnCNN](http://www4.comp.polyu.edu.hk/~cslzhang/paper/DnCNN.pdf)
+## [Beyond a Gaussian Denoiser: Residual Learning of Deep CNN for Image Denoising](http://ieeexplore.ieee.org/document/7839189/)
 
 ### Main Contents
 
@@ -49,15 +49,12 @@ upscaling factors 2, 3 and 40 on Set5, Set14, BSD100 and Urban100 datasets, JPEG
 |        | 2 | 36.86 / 0.9556 | 37.56 / 0.9591 | 37.58 / 0.9590 |
 |Set5    | 3 | 33.18 / 0.9152 | 33.67 / 0.9220 | 33.75 / 0.9222 |
 |        | 4 | 30.85 / 0.8732 | 31.35 / 0.8845 | 31.40 / 0.8845 |
-||
 |        | 2 | 32.51 / 0.9069 | 33.02 / 0.9128 | 33.03 / 0.9128 |
 |Set14   | 3 | 29.43 / 0.8232 | 29.77 / 0.8318 | 29.81 / 0.8321 |
 |        | 4 | 27.66 / 0.7563 | 27.99 / 0.7659 | 28.04 / 0.7672 |
-||
 |        | 2 | 31.40 / 0.8878 | 31.89 / 0.8961 | 31.90 / 0.8961 |
 |BSD100  | 3 | 28.50 / 0.7881 | 28.82 / 0.7980 | 28.85 / 0.7981 |
 |        | 4 | 27.00 / 0.7140 | 27.28 / 0.7256 | 27.29 / 0.7253 |
-||
 |        | 2 | 29.70 / 0.8994 | 30.76 / 0.9143 | 30.74 / 0.9139 |
 |Urban100| 3 | 26.42 / 0.8076 | 27.13 / 0.8283 | 27.15 / 0.8276 |
 |        | 4 | 24.61 / 0.7291 | 25.17 / 0.7528 | 25.20 / 0.7521 |
@@ -68,7 +65,6 @@ upscaling factors 2, 3 and 40 on Set5, Set14, BSD100 and Urban100 datasets, JPEG
 |        | 20 | 31.15 / 0.8517 | 31.47 / 0.8576 | 31.63 / 0.8610 |
 |        | 30 | 32.51 / 0.8806 | 32.78 / 0.8837 | 32.91 / 0.8861 |
 |        | 40 | 33.34 / 0.8953 |       -        | 33.77 / 0.9003 |
-||
 |  LIVE1 | 10 | 28.96 / 0.8076 | 29.15 / 0.8111 | 29.19 / 0.8123 |
 |        | 20 | 31.29 / 0.8733 | 31.46 / 0.8769 | 31.59 / 0.8802 |
 |        | 30 | 32.67 / 0.9043 | 32.84 / 0.9059 | 32.98 / 0.9090 |