Update README.markdown
Update README.markdown

Removed reference to NuGet as we're not quite there yet.
xivSolutions/biggy,OdeToCode/biggy,garethbrown/biggy,upta/biggy,jjchiw/biggy,jjchiw/biggy,OdeToCode/biggy,garethbrown/biggy,jjchiw/biggy,OdeToCode/biggy,upta/biggy,garethbrown/biggy,upta/biggy