added link for prev_permutation

Author: rotarymars

reference/algorithm/prev_permutation.md

@@ -76,6 +76,12 @@ int main ()
 }
 ```
 * std::prev_permutation[color ff0000]
+* std::vector[link /reference/vector/vector.md]
+* std::for_each[link /reference/algorithm/for_each.md]
+* v.begin[link /reference/vector/vector/begin.md]
+* v.end[link /reference/vector/vector/end.md]
+* std::cout[link /reference/iostream/cout.md]
+* std::endl[link /reference/ostream/endl.md]
 
 ### 出力
 ```