Fix a insufficient number of tilde in links.rst
Fix a insufficient number of tilde in links.rst

chainer/chainer,rezoo/chainer,keisuke-umezawa/chainer,niboshi/chainer,cupy/cupy,hvy/chainer,tkerola/chainer,cupy/cupy,cupy/cupy,niboshi/chainer,pfnet/chainer,keisuke-umezawa/chainer,ktnyt/chainer,ysekky/chainer,ronekko/chainer,chainer/chainer,chainer/chainer,aonotas/chainer,okuta/chainer,wkentaro/chainer,wkentaro/chainer,niboshi/chainer,chainer/chainer,delta2323/chainer,kiyukuta/chainer,hvy/chainer,ktnyt/chainer,okuta/chainer,okuta/chainer,keisuke-umezawa/chainer,niboshi/chainer,jnishi/chainer,okuta/chainer,hvy/chainer,wkentaro/chainer,jnishi/chainer,cupy/cupy,hvy/chainer,ktnyt/chainer,kashif/chainer,keisuke-umezawa/chainer,jnishi/chainer,anaruse/chainer,jnishi/chainer,wkentaro/chainer,ktnyt/chainer