fix(from_into.rs): typo

exercises/conversions/from_into.rs

@@ -31,7 +31,7 @@ impl Default for Person {
 // 3. Extract the first element from the split operation and use it as the name
 // 4. Extract the other element from the split operation and parse it into a `usize` as the age
 // If while parsing the age, something goes wrong, then return the default of Person
-// Otherwise, then return an instantiated Person onject with the results
+// Otherwise, then return an instantiated Person object with the results
 impl From<&str> for Person {
     fn from(s: &str) -> Person {
     }