Update 14255.improvement.rst
Update 14255.improvement.rst

improve release note according to review
mhvk/numpy,jakirkham/numpy,anntzer/numpy,grlee77/numpy,pizzathief/numpy,numpy/numpy,pbrod/numpy,WarrenWeckesser/numpy,pizzathief/numpy,rgommers/numpy,anntzer/numpy,simongibbons/numpy,numpy/numpy,simongibbons/numpy,endolith/numpy,simongibbons/numpy,seberg/numpy,charris/numpy,simongibbons/numpy,jakirkham/numpy,MSeifert04/numpy,seberg/numpy,grlee77/numpy,madphysicist/numpy,WarrenWeckesser/numpy,pdebuyl/numpy,madphysicist/numpy,mhvk/numpy,endolith/numpy,anntzer/numpy,MSeifert04/numpy,pdebuyl/numpy,charris/numpy,jakirkham/numpy,WarrenWeckesser/numpy,simongibbons/numpy,pdebuyl/numpy,mhvk/numpy,MSeifert04/numpy,abalkin/numpy,grlee77/numpy,pbrod/numpy,charris/numpy,WarrenWeckesser/numpy,MSeifert04/numpy,jorisvandenbossche/numpy,abalkin/numpy,jorisvandenbossche/numpy,jorisvandenbossche/numpy,mattip/numpy,seberg/numpy,seberg/numpy,jakirkham/numpy,pizzathief/numpy,pdebuyl/numpy,jorisvandenbossche/numpy,WarrenWeckesser/numpy,jorisvandenbossche/numpy,mattip/numpy,madphysicist/numpy,mhvk/numpy,pbrod/numpy,mhvk/numpy,jakirkham/numpy,rgommers/numpy,mattip/numpy,pbrod/numpy,numpy/numpy,anntzer/numpy,pizzathief/numpy,charris/numpy,endolith/numpy,rgommers/numpy,rgommers/numpy,endolith/numpy,pizzathief/numpy,madphysicist/numpy,grlee77/numpy,pbrod/numpy,grlee77/numpy,abalkin/numpy,madphysicist/numpy,numpy/numpy,MSeifert04/numpy,mattip/numpy