Is your feature request related to a problem? Please describe.

A player tries to make a sign but judges the price higher than the maximum price as defined in the pricelimits.yml.
He gets the message Buy price is above maximum! but doesn't know what price is right.
He tries endlessly until he finally has reached the right price and makes the sign.
Can't this be more easy?

Describe the solution you'd like

I would like the message would accept placeholders.
Example: Buy price is above maximum of {maxBprice}!

Describe alternatives you've considered

Alternative solution is to advertise all min/max prices on a website or large hall somewhere in game with lots and lots of item frames + signs to publish all prices.

Additional context