add notes to primetest examples
add notes to primetest examples

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