Correct way to add elements to a multidimensional array?

[jling]

julia> nums = [1 2;
               3 4]
2×2 Array{Int64,2}:
 1  2
 3  4
julia> vcat(nums, [5 6])
3×2 Array{Int64,2}:
 1  2
 3  4
 5  6

?