doc `dims` kwarg arg in `strel_box`

[bjarthur]

the method definitions of strel_box have a dims kwarg:

ImageMorphology.jl/src/StructuringElements/strel_box.jl

Line 115 in 2ce397f

function strel_box(A::AbstractArray{T,N}, dims=coords_spatial(A); r::Union{Nothing,Dims{N},Int}=nothing) where {T,N}

ImageMorphology.jl/src/StructuringElements/strel_box.jl

Line 126 in 2ce397f

function strel_box(sz::Dims{N}, dims=ntuple(identity, N); r::Union{Nothing,Dims{N},Int}=nothing) where {N}

but the docstring does not:

ImageMorphology.jl/src/StructuringElements/strel_box.jl

Lines 71 to 72 in 2ce397f

	strel_box(A; r=1)
	strel_box(size; r=size .÷ 2)