Fix title underline length
Fix title underline length

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