update doc
update doc

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