No markup
=========

asterisks: * "*" '*' (*) (* [*] {*} 1*x BOM32_*
double asterisks: ** a**b O(N**2) etc.
backquotes: ` `` etc.
underscores: _ __ __init__ __init__() etc.
vertical bars: | || etc.

For instance, function int mail(char *to, char *from) should NOT free
to and/or from.

