Update coding guidelines on shortcut aliases
Update coding guidelines on shortcut aliases

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