fix some typo regarding to ranges

Author: suomesta

reference/algorithm/ranges_fold_right_last.md

@@ -150,15 +150,15 @@ int main() {
   range auto rng = views::empty<int>;
   auto op = std::plus<>{};
 
-  auto res1 = fold_left(rng, -1, op);
+  auto res1 = fold_right(rng, -1, op);
   auto res2 = fold_right_last(rng, op);
 
   std::println("{:d}", res1);
   std::println("{:d}", res2.value_or(-1));
 }
 ```
 * fold_right_last[color ff0000]
-* fold_left[link ranges_fold_right.md]
+* fold_right[link ranges_fold_right.md]
 * println[link /reference/print/println.md]
 * value_or[link /reference/optional/optional/value_or.md]
 

reference/algorithm/ranges_is_permutation.md

@@ -43,7 +43,7 @@ namespace std::ranges {
 ```
 * forward_iterator[link /reference/iterator/forward_iterator.md]
 * sentinel_for[link /reference/iterator/sentinel_for.md]
-* ranges::equal_to[link /reference/functional/ranges_less.md]
+* ranges::equal_to[link /reference/functional/ranges_equal_to.md]
 * identity[link /reference/functional/identity.md]
 * indirect_equivalence_relation[link /reference/iterator/indirect_equivalence_relation.md]
 * projected[link /reference/iterator/projected.md]

reference/ranges/subrange/op_constructor.md

@@ -109,7 +109,7 @@ int main()
   const std::ranges::subrange sub5(fwl, 3);
   // forward_listはsized_rangeではないが、長さを指定しているのでsubrangeはsized_rangeとなり、sizeメンバ関数が定義される
   static_assert(std::ranges::sized_range<decltype(sub5)>);
-  assert(sub4.size() == 3);
+  assert(sub5.size() == 3);
 }
 ```