[PATCH v3] doc: add texinfodocs and infodocs targets

[Heinrich Schuchardt]

On 12/19/22 03:48, Maxim Cournoyer wrote:
> Sphinx supports generating Texinfo sources and Info documentation,
> which can be navigated easily and is convenient to search (via the
> indexed nodes or anchors, for example).  This is basically the same as
> 1f050e904dd6f2955eecbd22031d912ccb2e7683, which was recently applied
> to the Linux kernel.
> 
> Signed-off-by: Maxim Cournoyer <maxim.cournoyer at savoirfairelinux.com>

Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>