diffgeom docstring fixes
diffgeom docstring fixes

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