Quick fix: line break needed in RPN page

On this page https://appacademy-online.herokuapp.com/rpn-calculator

there needs to be a line break between the two expressions in here:
1 2 + 3 * => (1 + 2) * 3 1 2 3 * + => 1 + (2 * 3)

then it will read as:
1 2 + 3 * => (1 + 2) * 3
1 2 3 * + => 1 + (2 * 3)

Thanks for more great help David!