[PATCH 1/1] doc: imx: psb: fix footnotes

[Marek Vasut]

On 4/11/21 5:06 PM, Heinrich Schuchardt wrote:
> In reStructured text footnotes are referenced like [1]_.
> 
> Add missing underscores.
> 
> Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>

Acked-by: Marek Vasut <marex at denx.de>

Thanks