DOC: roadmap: address review comments
DOC: roadmap: address review comments

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endolith/scipy,scipy/scipy,endolith/scipy,scipy/scipy,andyfaff/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,andyfaff/scipy,andyfaff/scipy,scipy/scipy,mdhaber/scipy,ilayn/scipy,Stefan-Endres/scipy,anntzer/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,scipy/scipy,perimosocordiae/scipy,mdhaber/scipy,anntzer/scipy,ilayn/scipy,rgommers/scipy,endolith/scipy,anntzer/scipy,andyfaff/scipy,ilayn/scipy,scipy/scipy,anntzer/scipy,perimosocordiae/scipy,anntzer/scipy,andyfaff/scipy,scipy/scipy,endolith/scipy,perimosocordiae/scipy,Stefan-Endres/scipy,endolith/scipy,mdhaber/scipy,Stefan-Endres/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,ilayn/scipy,Stefan-Endres/scipy,mdhaber/scipy,perimosocordiae/scipy,rgommers/scipy,mdhaber/scipy,andyfaff/scipy,rgommers/scipy,endolith/scipy,anntzer/scipy,ilayn/scipy,rgommers/scipy,ilayn/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,WarrenWeckesser/scipy,mdhaber/scipy,rgommers/scipy