DOC: address review comments on guide for downstream package authors
DOC: address review comments on guide for downstream package authors

mhvk/numpy,mhvk/numpy,seberg/numpy,numpy/numpy,jakirkham/numpy,numpy/numpy,numpy/numpy,seberg/numpy,pbrod/numpy,anntzer/numpy,endolith/numpy,jakirkham/numpy,rgommers/numpy,jakirkham/numpy,mattip/numpy,mattip/numpy,seberg/numpy,endolith/numpy,simongibbons/numpy,charris/numpy,mattip/numpy,charris/numpy,pdebuyl/numpy,numpy/numpy,mhvk/numpy,endolith/numpy,simongibbons/numpy,mhvk/numpy,endolith/numpy,rgommers/numpy,charris/numpy,pbrod/numpy,pdebuyl/numpy,pbrod/numpy,charris/numpy,jakirkham/numpy,pbrod/numpy,simongibbons/numpy,rgommers/numpy,pbrod/numpy,jakirkham/numpy,mhvk/numpy,seberg/numpy,anntzer/numpy,anntzer/numpy,pdebuyl/numpy,pdebuyl/numpy,simongibbons/numpy,simongibbons/numpy,mattip/numpy,anntzer/numpy,rgommers/numpy