Added some TODO for minor (important) fixes

src/characters.cc

@@ -69,6 +69,7 @@ void character::set_hostile(const bool is_hostile) {
 }
 
 void character::apply_buff(const stat_name statn, const int amount) {
+        // TODO: add checks for bounds
         switch (statn) {
         case stat_name::HP:
                 HP += amount;