add debug model attribute in readme sample
add debug model attribute in readme sample

yomybaby/Appcelerator-Cloud-Services-Sync-Adapter,aaronksaunders/Appcelerator-Cloud-Services-Sync-Adapter,yomybaby/Appcelerator-Cloud-Services-Sync-Adapter,titanium-forks/aaronksaunders.ci.alloy.adapter.two,aaronksaunders/Appcelerator-Cloud-Services-Sync-Adapter,titanium-forks/aaronksaunders.ci.alloy.adapter.two