DOC: Update HOWTO_RELEASE.rst.txt.
DOC: Update HOWTO_RELEASE.rst.txt.

Add more detail in the "Check the C API version number" section.

CMartelLML/numpy,mingwpy/numpy,Srisai85/numpy,rajathkumarmp/numpy,seberg/numpy,nguyentu1602/numpy,Yusa95/numpy,SiccarPoint/numpy,chatcannon/numpy,nguyentu1602/numpy,bmorris3/numpy,kiwifb/numpy,dimasad/numpy,rajathkumarmp/numpy,cjermain/numpy,WarrenWeckesser/numpy,NextThought/pypy-numpy,jakirkham/numpy,Anwesh43/numpy,behzadnouri/numpy,cowlicks/numpy,anntzer/numpy,ChristopherHogan/numpy,WarrenWeckesser/numpy,dch312/numpy,numpy/numpy,andsor/numpy,jorisvandenbossche/numpy,numpy/numpy,chatcannon/numpy,WillieMaddox/numpy,jschueller/numpy,Yusa95/numpy,mindw/numpy,BabeNovelty/numpy,has2k1/numpy,shoyer/numpy,rudimeier/numpy,simongibbons/numpy,ChristopherHogan/numpy,GaZ3ll3/numpy,Anwesh43/numpy,pbrod/numpy,SiccarPoint/numpy,ChristopherHogan/numpy,abalkin/numpy,dwillmer/numpy,ContinuumIO/numpy,dch312/numpy,GrimDerp/numpy,rherault-insa/numpy,rherault-insa/numpy,kiwifb/numpy,ContinuumIO/numpy,pbrod/numpy,SunghanKim/numpy,mathdd/numpy,AustereCuriosity/numpy,ContinuumIO/numpy,WillieMaddox/numpy,tacaswell/numpy,mortada/numpy,NextThought/pypy-numpy,bringingheavendown/numpy,mindw/numpy,sinhrks/numpy,joferkington/numpy,Dapid/numpy,nbeaver/numpy,mwiebe/numpy,tdsmith/numpy,jakirkham/numpy,tynn/numpy,sigma-random/numpy,grlee77/numpy,gfyoung/numpy,rmcgibbo/numpy,ahaldane/numpy,skwbc/numpy,moreati/numpy,pizzathief/numpy,cjermain/numpy,sonnyhu/numpy,pizzathief/numpy,naritta/numpy,larsmans/numpy,tdsmith/numpy,nbeaver/numpy,Anwesh43/numpy,GaZ3ll3/numpy,trankmichael/numpy,tynn/numpy,musically-ut/numpy,ViralLeadership/numpy,ChanderG/numpy,dato-code/numpy,ddasilva/numpy,jorisvandenbossche/numpy,kirillzhuravlev/numpy,ekalosak/numpy,utke1/numpy,gfyoung/numpy,groutr/numpy,grlee77/numpy,argriffing/numpy,madphysicist/numpy,kirillzhuravlev/numpy,joferkington/numpy,dimasad/numpy,Srisai85/numpy,b-carter/numpy,mindw/numpy,brandon-rhodes/numpy,mortada/numpy,ChanderG/numpy,bertrand-l/numpy,BMJHayward/numpy,KaelChen/numpy,ddasilva/numpy,hainm/numpy,rgommers/numpy,mhvk/numpy,grlee77/numpy,ViralLeadership/numpy,Dapid/numpy,mattip/numpy,pdebuyl/numpy,hainm/numpy,KaelChen/numpy,stuarteberg/numpy,abalkin/numpy,charris/numpy,simongibbons/numpy,empeeu/numpy,joferkington/numpy,mortada/numpy,sonnyhu/numpy,cjermain/numpy,shoyer/numpy,gfyoung/numpy,madphysicist/numpy,SunghanKim/numpy,MSeifert04/numpy,andsor/numpy,simongibbons/numpy,CMartelLML/numpy,leifdenby/numpy,jankoslavic/numpy,mathdd/numpy,dwillmer/numpy,pyparallel/numpy,groutr/numpy,jonathanunderwood/numpy,cowlicks/numpy,BabeNovelty/numpy,brandon-rhodes/numpy,argriffing/numpy,BMJHayward/numpy,hainm/numpy,Linkid/numpy,felipebetancur/numpy,WarrenWeckesser/numpy,sigma-random/numpy,GrimDerp/numpy,sinhrks/numpy,naritta/numpy,utke1/numpy,kirillzhuravlev/numpy,anntzer/numpy,mingwpy/numpy,musically-ut/numpy,bertrand-l/numpy,mattip/numpy,brandon-rhodes/numpy,abalkin/numpy,felipebetancur/numpy,ssanderson/numpy,rudimeier/numpy,GaZ3ll3/numpy,rhythmsosad/numpy,ahaldane/numpy,githubmlai/numpy,bmorris3/numpy,AustereCuriosity/numpy,Linkid/numpy,BMJHayward/numpy,ajdawson/numpy,WarrenWeckesser/numpy,felipebetancur/numpy,jschueller/numpy,rhythmsosad/numpy,MSeifert04/numpy,tdsmith/numpy,njase/numpy,kirillzhuravlev/numpy,dch312/numpy,simongibbons/numpy,Linkid/numpy,ajdawson/numpy,ekalosak/numpy,ekalosak/numpy,dch312/numpy,anntzer/numpy,cjermain/numpy,jakirkham/numpy,KaelChen/numpy,mhvk/numpy,seberg/numpy,bmorris3/numpy,chiffa/numpy,tdsmith/numpy,rudimeier/numpy,trankmichael/numpy,Srisai85/numpy,rgommers/numpy,rajathkumarmp/numpy,SiccarPoint/numpy,MSeifert04/numpy,cowlicks/numpy,grlee77/numpy,njase/numpy,empeeu/numpy,tacaswell/numpy,mhvk/numpy,kiwifb/numpy,MSeifert04/numpy,dato-code/numpy,seberg/numpy,jakirkham/numpy,ssanderson/numpy,jakirkham/numpy,naritta/numpy,seberg/numpy,leifdenby/numpy,SiccarPoint/numpy,cowlicks/numpy,MaPePeR/numpy,rmcgibbo/numpy,pdebuyl/numpy,larsmans/numpy,brandon-rhodes/numpy,BabeNovelty/numpy,mingwpy/numpy,NextThought/pypy-numpy,ahaldane/numpy,gmcastil/numpy,ChanderG/numpy,bmorris3/numpy,jschueller/numpy,ssanderson/numpy,mhvk/numpy,jankoslavic/numpy,madphysicist/numpy,ChristopherHogan/numpy,Eric89GXL/numpy,dwillmer/numpy,solarjoe/numpy,naritta/numpy,MaPePeR/numpy,mortada/numpy,mindw/numpy,trankmichael/numpy,ViralLeadership/numpy,shoyer/numpy,pyparallel/numpy,musically-ut/numpy,dimasad/numpy,githubmlai/numpy,mwiebe/numpy,skymanaditya1/numpy,has2k1/numpy,CMartelLML/numpy,dwillmer/numpy,pbrod/numpy,yiakwy/numpy,CMartelLML/numpy,MaPePeR/numpy,drasmuss/numpy,andsor/numpy,charris/numpy,ahaldane/numpy,tynn/numpy,has2k1/numpy,pizzathief/numpy,dato-code/numpy,b-carter/numpy,stuarteberg/numpy,pyparallel/numpy,joferkington/numpy,grlee77/numpy,mingwpy/numpy,ESSS/numpy,pbrod/numpy,simongibbons/numpy,GrimDerp/numpy,behzadnouri/numpy,empeeu/numpy,MichaelAquilina/numpy,rmcgibbo/numpy,rajathkumarmp/numpy,yiakwy/numpy,b-carter/numpy,rhythmsosad/numpy,skwbc/numpy,maniteja123/numpy,endolith/numpy,leifdenby/numpy,sinhrks/numpy,chiffa/numpy,sigma-random/numpy,ajdawson/numpy,trankmichael/numpy,skymanaditya1/numpy,charris/numpy,nguyentu1602/numpy,stuarteberg/numpy,bringingheavendown/numpy,solarjoe/numpy,jschueller/numpy,pbrod/numpy,larsmans/numpy,endolith/numpy,skymanaditya1/numpy,skwbc/numpy,charris/numpy,jonathanunderwood/numpy,ahaldane/numpy,mathdd/numpy,mattip/numpy,rhythmsosad/numpy,ddasilva/numpy,bertrand-l/numpy,larsmans/numpy,jonathanunderwood/numpy,jankoslavic/numpy,gmcastil/numpy,musically-ut/numpy,KaelChen/numpy,Yusa95/numpy,gmcastil/numpy,madphysicist/numpy,bringingheavendown/numpy,Eric89GXL/numpy,empeeu/numpy,MichaelAquilina/numpy,Srisai85/numpy,jorisvandenbossche/numpy,WarrenWeckesser/numpy,mwiebe/numpy,pizzathief/numpy,solarjoe/numpy,maniteja123/numpy,githubmlai/numpy,yiakwy/numpy,GaZ3ll3/numpy,has2k1/numpy,hainm/numpy,ajdawson/numpy,mhvk/numpy,jankoslavic/numpy,utke1/numpy,Anwesh43/numpy,BMJHayward/numpy,rmcgibbo/numpy,SunghanKim/numpy,andsor/numpy,argriffing/numpy,GrimDerp/numpy,MichaelAquilina/numpy,sinhrks/numpy,mattip/numpy,skymanaditya1/numpy,MaPePeR/numpy,tacaswell/numpy,jorisvandenbossche/numpy,ESSS/numpy,njase/numpy,pdebuyl/numpy,Eric89GXL/numpy,nguyentu1602/numpy,pizzathief/numpy,anntzer/numpy,dimasad/numpy,ESSS/numpy,rgommers/numpy,nbeaver/numpy,stuarteberg/numpy,jorisvandenbossche/numpy,numpy/numpy,rgommers/numpy,Yusa95/numpy,MSeifert04/numpy,chiffa/numpy,dato-code/numpy,shoyer/numpy,drasmuss/numpy,maniteja123/numpy,MichaelAquilina/numpy,rherault-insa/numpy,Eric89GXL/numpy,githubmlai/numpy,ekalosak/numpy,shoyer/numpy,sonnyhu/numpy,groutr/numpy,SunghanKim/numpy,moreati/numpy,rudimeier/numpy,sigma-random/numpy,mathdd/numpy,moreati/numpy,NextThought/pypy-numpy,chatcannon/numpy,BabeNovelty/numpy,Linkid/numpy,felipebetancur/numpy,AustereCuriosity/numpy,numpy/numpy,endolith/numpy,endolith/numpy,drasmuss/numpy,behzadnouri/numpy,Dapid/numpy,sonnyhu/numpy,yiakwy/numpy,madphysicist/numpy,pdebuyl/numpy,ChanderG/numpy,WillieMaddox/numpy