Added clarification on how username is used when registering
Added clarification on how username is used when registering

PeteAndersen/swarfarm,porksmash/swarfarm,porksmash/swarfarm,porksmash/swarfarm,PeteAndersen/swarfarm,porksmash/swarfarm,PeteAndersen/swarfarm,PeteAndersen/swarfarm