[sheepdog] [PATCH] update INSTALL

[MORITA Kazutaka]

At Mon,  3 Jun 2013 14:34:57 +0800,
Liu Yuan wrote:
> 
>  3. Download, build and install the Sheepdog server and command line tools:
>  
> -   $ git clone git://sheepdog.git.sf.net/gitroot/sheepdog/sheepdog
> +   $ git clone git at github.com:collie/sheepdog.git

I think a git protocol is more suitable for read-only purpose:

   git://github.com/collie/sheepdog.git

Thanks,

Kazutaka