[PATCH] doc: add deprecation notice for kni example

[Bruce Richardson]

On Tue, Jul 12, 2022 at 04:17:31PM +0200, Thomas Monjalon wrote:
> 30/06/2022 18:50, Bruce Richardson:
> > +* examples/kni: The ``kni`` kernel module and library are not recommended for use by new applications -
> > +  other technologies such as virtio-user are recommended instead.
> > +  Because of this, the example application for kni is deprecated and will be removed in a future release.
> 
> Acked-by: Thomas Monjalon <thomas at monjalon.net>
> 
> I think it would have been better to give a precise timeline.
> 
I intentionally left it vague in case we decided to defer removal for a
release or anything. However, feel free to replace "in a future" release
with "in 22.11 release" on apply if you like.

/Bruce