feat(try_from_into): add hint comments
// Basically, this is the same as From. The main difference is that this should return a Result type
// instead of the target type itself.
// You can read more about it at https://doc.rust-lang.org/std/convert/trait.TryFrom.html
-// Execute `rustlings hint from_str` or use the `hint` watch subcommand for a hint.
+// Execute `rustlings hint try_from_into` or use the `hint` watch subcommand for a hint.
use std::convert::{TryFrom, TryInto};
