README: Changing David's address to the same form as the other addresses.
README: Changing David's address to the same form as the other addresses.

sampadsaha5/sympy,saurabhjn76/sympy,jamesblunt/sympy,pandeyadarsh/sympy,sahilshekhawat/sympy,jerli/sympy,AkademieOlympia/sympy,oliverlee/sympy,wyom/sympy,beni55/sympy,liangjiaxing/sympy,souravsingh/sympy,iamutkarshtiwari/sympy,Shaswat27/sympy,mattpap/sympy-polys,hazelnusse/sympy-old,jbbskinny/sympy,rahuldan/sympy,Mitchkoens/sympy,oliverlee/sympy,hrashk/sympy,pbrady/sympy,jaimahajan1997/sympy,shipci/sympy,lidavidm/sympy,Vishluck/sympy,VaibhavAgarwalVA/sympy,Titan-C/sympy,amitjamadagni/sympy,souravsingh/sympy,MechCoder/sympy,moble/sympy,liangjiaxing/sympy,Designist/sympy,kaushik94/sympy,MridulS/sympy,madan96/sympy,postvakje/sympy,Arafatk/sympy,jaimahajan1997/sympy,Gadal/sympy,sunny94/temp,jbaayen/sympy,iamutkarshtiwari/sympy,atsao72/sympy,mafiya69/sympy,aktech/sympy,abhiii5459/sympy,ChristinaZografou/sympy,lindsayad/sympy,cccfran/sympy,Vishluck/sympy,MridulS/sympy,Sumith1896/sympy,grevutiu-gabriel/sympy,saurabhjn76/sympy,lidavidm/sympy,mcdaniel67/sympy,ga7g08/sympy,skidzo/sympy,fperez/sympy,pandeyadarsh/sympy,madan96/sympy,atsao72/sympy,Davidjohnwilson/sympy,ga7g08/sympy,abloomston/sympy,amitjamadagni/sympy,maniteja123/sympy,wanglongqi/sympy,abhiii5459/sympy,jbbskinny/sympy,Sumith1896/sympy,Shaswat27/sympy,debugger22/sympy,pernici/sympy,chaffra/sympy,atreyv/sympy,dqnykamp/sympy,chaffra/sympy,wyom/sympy,abloomston/sympy,mafiya69/sympy,yukoba/sympy,skirpichev/omg,debugger22/sympy,shikil/sympy,toolforger/sympy,jerli/sympy,sunny94/temp,cccfran/sympy,grevutiu-gabriel/sympy,shipci/sympy,kaushik94/sympy,kumarkrishna/sympy,sahmed95/sympy,sahmed95/sympy,Mitchkoens/sympy,postvakje/sympy,saurabhjn76/sympy,aktech/sympy,beni55/sympy,meghana1995/sympy,Curious72/sympy,hrashk/sympy,sampadsaha5/sympy,srjoglekar246/sympy,sampadsaha5/sympy,asm666/sympy,bukzor/sympy,oliverlee/sympy,VaibhavAgarwalVA/sympy,atsao72/sympy,cswiercz/sympy,emon10005/sympy,souravsingh/sympy,jamesblunt/sympy,cswiercz/sympy,kmacinnis/sympy,Arafatk/sympy,farhaanbukhsh/sympy,Designist/sympy,moble/sympy,Arafatk/sympy,Curious72/sympy,chaffra/sympy,flacjacket/sympy,dqnykamp/sympy,skidzo/sympy,emon10005/sympy,VaibhavAgarwalVA/sympy,sahmed95/sympy,grevutiu-gabriel/sympy,yukoba/sympy,ahhda/sympy,debugger22/sympy,mafiya69/sympy,AunShiLord/sympy,KevinGoodsell/sympy,beni55/sympy,ryanGT/sympy,diofant/diofant,atreyv/sympy,vipulroxx/sympy,vipulroxx/sympy,jbbskinny/sympy,hazelnusse/sympy-old,jamesblunt/sympy,liangjiaxing/sympy,aktech/sympy,cswiercz/sympy,Sumith1896/sympy,kevalds51/sympy,yashsharan/sympy,kevalds51/sympy,lidavidm/sympy,tovrstra/sympy,madan96/sympy,Titan-C/sympy,garvitr/sympy,Titan-C/sympy,farhaanbukhsh/sympy,Davidjohnwilson/sympy,jaimahajan1997/sympy,kmacinnis/sympy,Curious72/sympy,sunny94/temp,abhiii5459/sympy,sahilshekhawat/sympy,garvitr/sympy,kaushik94/sympy,jerli/sympy,hargup/sympy,ChristinaZografou/sympy,kaichogami/sympy,bukzor/sympy,emon10005/sympy,lindsayad/sympy,abloomston/sympy,kevalds51/sympy,rahuldan/sympy,AunShiLord/sympy,toolforger/sympy,Shaswat27/sympy,bukzor/sympy,Designist/sympy,cccfran/sympy,yukoba/sympy,Davidjohnwilson/sympy,Gadal/sympy,pbrady/sympy,iamutkarshtiwari/sympy,wyom/sympy,mcdaniel67/sympy,AkademieOlympia/sympy,wanglongqi/sympy,meghana1995/sympy,Mitchkoens/sympy,kmacinnis/sympy,maniteja123/sympy,maniteja123/sympy,drufat/sympy,AunShiLord/sympy,MridulS/sympy,kaichogami/sympy,garvitr/sympy,skidzo/sympy,pbrady/sympy,pandeyadarsh/sympy,ChristinaZografou/sympy,lindsayad/sympy,moble/sympy,drufat/sympy,mcdaniel67/sympy,toolforger/sympy,sahilshekhawat/sympy,kumarkrishna/sympy,minrk/sympy,Vishluck/sympy,minrk/sympy,rahuldan/sympy,wanglongqi/sympy,dqnykamp/sympy,yashsharan/sympy,Gadal/sympy,hrashk/sympy,asm666/sympy,shipci/sympy,ga7g08/sympy,hargup/sympy,hargup/sympy,kaichogami/sympy,ahhda/sympy,shikil/sympy,farhaanbukhsh/sympy,atreyv/sympy,vipulroxx/sympy,shikil/sympy,yashsharan/sympy,meghana1995/sympy,drufat/sympy,postvakje/sympy,AkademieOlympia/sympy,asm666/sympy,kumarkrishna/sympy,ahhda/sympy,MechCoder/sympy,MechCoder/sympy