Fix typos in German tutorial.
Fix typos in German tutorial.

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