Some more small fixes to the solveset docs
Some more small fixes to the solveset docs

aktech/sympy,ChristinaZografou/sympy,rahuldan/sympy,yashsharan/sympy,Titan-C/sympy,yashsharan/sympy,kaushik94/sympy,madan96/sympy,souravsingh/sympy,jaimahajan1997/sympy,souravsingh/sympy,drufat/sympy,sampadsaha5/sympy,ChristinaZografou/sympy,hargup/sympy,jaimahajan1997/sympy,kaushik94/sympy,chaffra/sympy,hargup/sympy,souravsingh/sympy,ChristinaZografou/sympy,sampadsaha5/sympy,postvakje/sympy,madan96/sympy,skidzo/sympy,drufat/sympy,chaffra/sympy,postvakje/sympy,kaushik94/sympy,postvakje/sympy,aktech/sympy,Titan-C/sympy,Titan-C/sympy,rahuldan/sympy,rahuldan/sympy,sampadsaha5/sympy,madan96/sympy,chaffra/sympy,skidzo/sympy,jaimahajan1997/sympy,aktech/sympy,skidzo/sympy,hargup/sympy,drufat/sympy,yashsharan/sympy