adds notes for avoiding windows firewall
adds notes for avoiding windows firewall

libmapper/libmapper,malloch/libmapper,malloch/libmapper,libmapper/libmapper,libmapper/libmapper,malloch/libmapper,malloch/libmapper,libmapper/libmapper,malloch/libmapper,malloch/libmapper,libmapper/libmapper,libmapper/libmapper