It's a little weird that the if/else exercise isn't solved with if/else

[illicitonion]

I watched a novice programmer solving https://github.com/mainmatter/100-exercises-to-learn-rust/blob/main/exercises/02_basic_calculator/03_if_else/src/lib.rs and they got a little confused - they assumed because this was a lesson on if/else, that they were meant to use if/else in solving it.

The solutions branch has what I agree is the ideal solution to this problem: n % 2 == 0

I'd suggest we either re-title the section to remove "if/else" from the title (maybe "Branching and conditionals" or "Branching and comparisons" or something), or change the exercise so that it actually involves an if/else expression in some way.