Corrected the error done in printing.rst
Corrected the error done in printing.rst

ahhda/sympy,rahuldan/sympy,kaichogami/sympy,ChristinaZografou/sympy,ahhda/sympy,skidzo/sympy,yashsharan/sympy,oliverlee/sympy,drufat/sympy,kaichogami/sympy,Titan-C/sympy,kaushik94/sympy,souravsingh/sympy,souravsingh/sympy,hargup/sympy,chaffra/sympy,rahuldan/sympy,jerli/sympy,lindsayad/sympy,Shaswat27/sympy,chaffra/sympy,jaimahajan1997/sympy,drufat/sympy,Curious72/sympy,hargup/sympy,lindsayad/sympy,sampadsaha5/sympy,jaimahajan1997/sympy,mafiya69/sympy,Curious72/sympy,Shaswat27/sympy,yashsharan/sympy,yashsharan/sympy,oliverlee/sympy,kaushik94/sympy,skidzo/sympy,Arafatk/sympy,postvakje/sympy,Curious72/sympy,hargup/sympy,postvakje/sympy,souravsingh/sympy,ChristinaZografou/sympy,mafiya69/sympy,aktech/sympy,chaffra/sympy,madan96/sympy,madan96/sympy,sampadsaha5/sympy,mafiya69/sympy,skidzo/sympy,drufat/sympy,jerli/sympy,lindsayad/sympy,rahuldan/sympy,jaimahajan1997/sympy,kaushik94/sympy,madan96/sympy,kaichogami/sympy,Shaswat27/sympy,oliverlee/sympy,aktech/sympy,Arafatk/sympy,Titan-C/sympy,ahhda/sympy,Titan-C/sympy,jerli/sympy,ChristinaZografou/sympy,Arafatk/sympy,aktech/sympy,sampadsaha5/sympy,postvakje/sympy