fix permutations.rst
fix permutations.rst

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