fix: toSortedなどのMDNのURLを修正 (#1686)

* fix: toSortedなどのMDNのURLを修正

* Update README.md

Author: azu

source/basic/array/README.md

@@ -841,14 +841,16 @@ console.log(newArray); // => ["A", "B2", "C"]
 
 次の表では、破壊的な方法に対応する非破壊的な方法をまとめています。
 
+<!-- TODO: to~のメソッドはMDNのページに日本語がないためen-USになっている) -->
+
 | 破壊的な方法                                    | 非破壊な方法           |
 | ---------------------------------------- | ------------- |
 | `array[index] = item` | [`Array.prototype.with`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/with)<sup>[ES2023]</sup>      |
 | [`Array.prototype.pop`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/pop) | [`array.slice(0, -1)`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/slice)と[`array.at(-1)`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/at)<sup>[ES2022]</sup>       |
 | [`Array.prototype.push`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/push) | `[...array, item]`<sup>[ES2015]</sup> |
-| [`Array.prototype.splice`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/splice) | [`Array.prototype.toSpliced`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/toSpliced)<sup>[ES2023]</sup> |
-| [`Array.prototype.reverse`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse) | [`Array.prototype.toReversed`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/toReversed)<sup>[ES2023]</sup>        |
-| [`Array.prototype.sort`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/sort) | [`Array.prototype.toSorted`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/toSorted)<sup>[ES2023]</sup>       |
+| [`Array.prototype.splice`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/splice) | [`Array.prototype.toSpliced`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/toSpliced)<sup>[ES2023]</sup> |
+| [`Array.prototype.reverse`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse) | [`Array.prototype.toReversed`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/toReversed)<sup>[ES2023]</sup>        |
+| [`Array.prototype.sort`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/sort) | [`Array.prototype.toSorted`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/toSorted)<sup>[ES2023]</sup>       |
 | [`Array.prototype.shift`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/shift) | [`array.slice(1)`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/slice)と[`array.at(0)`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/at)<sup>[ES2022]</sup>    |
 | [`Array.prototype.unshift`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/unshift) | `[item, ...array]`<sup>[ES2015]</sup>  |
 | [`Array.prototype.copyWithin`](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/copyWithin)<sup>[ES2015]</sup> | なし        |