Allow Windows 32-bit builds to fail
Allow Windows 32-bit builds to fail

It appears that the 32-bit binary builds are not currently entirely
stable. A doctest in the HTML test example makes crashed Julia on that
binary, even though it works perfectly on other platforms/versions/etc.

mortenpi/Documenter.jl,JuliaDocs/Documenter.jl,MichaelHatherly/Lapidary.jl