Added F# sample to README
Added F# sample to README
rmboggs/commandline,huoxudong125/commandline,anthonylangsworth/commandline,anthonylangsworth/commandline,rmboggs/commandline,Emergensys/commandline,kshanafelt/commandline,kshanafelt/commandline,huoxudong125/commandline,nausley/commandline,Emergensys/commandline,Thilas/commandline,Ehryk/commandline,Thilas/commandline,nausley/commandline,Ehryk/commandline