Add a short installation guide to the README
Add a short installation guide to the README

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