[dpdk-dev] [PATCH] doc: simplify release notes cover

[Thomas Monjalon]

> > One hierarchical level is enough for this table of content.
> > 
> > Use generated release number.
> > 
> > Signed-off-by: Thomas Monjalon <thomas.monjalon at 6wind.com>
> 
> Acked-by: John McNamara <john.mcnamara at intel.com>

Applied