⚠️ Add warning comment on Character string function

pkg/generator/character.go

@@ -54,6 +54,7 @@ func (c Character) Characteristics() map[Characteristic]int {
 	}
 }
 
+// String returns a string representation of the character. It is prone to change so you should not rely on it.
 func (c Character) String() string {
 	return fmt.Sprintf("Character{firstName: %v, surname: %v, role: %v, category: %v, experience: %v, skills: %v, characteristics: %v}",
 		c.firstName, c.surname, c.role, c.category, c.experience, c.skills, c.characteristics)