Add command alias 'hs'

Hi,
Thanks for open good package.

When using this http-server on command,
we should typing

http-server ./

This is too long with hypen hard to typing. (I know I'm too lazy)
What about add more command like "hs"? 
It will be run server more simply, I think.
(And I know alias hs='http-server' already works. And I'm already use http-server with 'hs' command)

Thanks.