Fixed typo in protocol docs
Fixed typo in protocol docs

PeterJohnson/sweep-sdk,scanse/sweep-sdk,scanse/sweep-sdk,PeterJohnson/sweep-sdk,PeterJohnson/sweep-sdk,scanse/sweep-sdk,scanse/sweep-sdk,PeterJohnson/sweep-sdk,PeterJohnson/sweep-sdk,scanse/sweep-sdk,scanse/sweep-sdk,PeterJohnson/sweep-sdk,PeterJohnson/sweep-sdk,scanse/sweep-sdk