Fixing some README typos
Fixing some README typos

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