docs/160696: style(9) should be mentioned in the devs' handbook

[Warren Block]

On Fri, 14 Oct 2011, Benjamin Kaduk wrote:

> The overall paragraph feels a bit odd, though; maybe like it's written in a 
> more informal style than I would expect?  A more standard dry, technical 
> writing version might be:
> %%%%%%%%%%
> <para>When working in a large codebase such as the &os; source, it is 
> important to adhere to a common coding style.  This provides uniformity
                ^^^^^^
"conform" might be better here.