address reviewer comments
address reviewer comments

Fixup a missing sentence and reword another.

stonebig/numba,stonebig/numba,stonebig/numba,numba/numba,IntelLabs/numba,sklam/numba,cpcloud/numba,IntelLabs/numba,seibert/numba,gmarkall/numba,sklam/numba,stuartarchibald/numba,seibert/numba,IntelLabs/numba,stuartarchibald/numba,cpcloud/numba,seibert/numba,numba/numba,sklam/numba,sklam/numba,cpcloud/numba,cpcloud/numba,IntelLabs/numba,stuartarchibald/numba,gmarkall/numba,numba/numba,gmarkall/numba,stonebig/numba,stonebig/numba,sklam/numba,seibert/numba,numba/numba,gmarkall/numba,cpcloud/numba,stuartarchibald/numba,stuartarchibald/numba,IntelLabs/numba,seibert/numba,gmarkall/numba,numba/numba