DOC: pip quickstart: setup.py -> meson (#15569)
DOC: pip quickstart: setup.py -> meson (#15569)

Recommend meson/dev.py in pip quickstart instead of setup.py

Use OpenBLAS not ATLAS

[ci skip] [skip ci] [azp skip]
perimosocordiae/scipy,scipy/scipy,andyfaff/scipy,vigna/scipy,Stefan-Endres/scipy,endolith/scipy,endolith/scipy,ilayn/scipy,vigna/scipy,andyfaff/scipy,rgommers/scipy,Stefan-Endres/scipy,scipy/scipy,WarrenWeckesser/scipy,mdhaber/scipy,endolith/scipy,endolith/scipy,ilayn/scipy,endolith/scipy,anntzer/scipy,perimosocordiae/scipy,vigna/scipy,endolith/scipy,rgommers/scipy,scipy/scipy,mdhaber/scipy,scipy/scipy,andyfaff/scipy,WarrenWeckesser/scipy,anntzer/scipy,Stefan-Endres/scipy,perimosocordiae/scipy,anntzer/scipy,vigna/scipy,WarrenWeckesser/scipy,ilayn/scipy,perimosocordiae/scipy,andyfaff/scipy,rgommers/scipy,WarrenWeckesser/scipy,anntzer/scipy,andyfaff/scipy,rgommers/scipy,ilayn/scipy,mdhaber/scipy,mdhaber/scipy,scipy/scipy,WarrenWeckesser/scipy,vigna/scipy,ilayn/scipy,Stefan-Endres/scipy,Stefan-Endres/scipy,ilayn/scipy,anntzer/scipy,mdhaber/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,scipy/scipy,Stefan-Endres/scipy,mdhaber/scipy,perimosocordiae/scipy,andyfaff/scipy,rgommers/scipy,anntzer/scipy