Ability to customize table header

[elliotnash]

I'd like to display different notation for boolean logic, ie $AB + overline(C)$ instead of $A and B or not(C)$. I think a good way of doing this would be having a separate display option that could be passed, where the display could just be a content block

So for example something

#truth-table(
  (eq: $A and B or not(C)$, display: [I can be anything])
)

or

#truth-table(
  ($A and B or not(C)$, [I can be anything])
)

While still allowing a math equation to be passed without the array/dictionary