fix broken URL

README.md

@@ -229,7 +229,7 @@ e.g.
         "id": "50101200",
         "title": "\u521d\u97f3\u30df\u30af 39's Special Day 1/7\u30b9\u30b1\u30fc\u30eb\u30d5\u30a3\u30ae\u30e5\u30a2\u3010\u5b8c\u5168\u53d7\u6ce8\u751f\u7523\u30fb\u30bf\u30a4\u30c8\u30fc\u30d7\u30ed\u30c0\u30af\u30c4\u30aa\u30f3\u30e9\u30a4\u30f3\u30b9\u30c8\u30a2\u9650\u5b9a\u3011",
         "images": [
-            "https://spiritale.jpimg/items/2302_39miku/02_31008.jpg",
+            "https://spiritale.jp/img/items/2302_39miku/02_31008.jpg",
             ...
         ],
         "price": "\uffe535,200"