DOC: better links in readme for newcomers.
DOC: better links in readme for newcomers.

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