Update cross-machine-test-guide.md
Update cross-machine-test-guide.md
dotnet/wcf,MarcosRamiro/wcf,KKhurin/wcf,ElJerry/wcf,hongdai/wcf,imcarolwang/wcf,KKhurin/wcf,mconnew/wcf,MattGal/wcf,StephenBonikowsky/wcf,shmao/wcf,khdang/wcf,SajayAntony/wcf,shmao/wcf,hongdai/wcf,mconnew/wcf,dotnet/wcf,mmitche/wcf,mmitche/wcf,SajayAntony/wcf,MarcosRamiro/wcf,iamjasonp/wcf,zhenlan/wcf,iamjasonp/wcf,ericstj/wcf,imcarolwang/wcf,mconnew/wcf,dotnet/wcf,imcarolwang/wcf,khdang/wcf,MattGal/wcf,ericstj/wcf,StephenBonikowsky/wcf,zhenlan/wcf,ElJerry/wcf