Update memmap.py
Update memmap.py

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