README.md: Clarified normalized/segwit & stuff
README.md: Clarified normalized/segwit & stuff

LightningNetwork/lnd,aakselrod/lnd,LightningNetwork/lnd,AndrewSamokhvalov/lnd,BitfuryLightning/lnd,AndrewSamokhvalov/lnd,bryanvu/lnd,ddustin/lnd,bryanvu/lnd,aakselrod/lnd,ddustin/lnd,BitfuryLightning/lnd