improve doc

docs/README.md

@@ -529,7 +529,7 @@ $ set PORT=4000 && node app.js
 说明:调用此接口,传入音乐 id, 可获得歌曲详情    
 
 **必选参数:**  
-`ids`: 音乐 id,可多个,如 `ids=347230` 或者 `ids=347230,347231`
+`ids`: 音乐 id,如 `ids=347230` 
 
 **接口地址:**  
 `/song/detail`  

router/song_detail.js

@@ -6,11 +6,12 @@ router.get("/", (req, res) => {
   const cookie = req.get('Cookie') ? req.get('Cookie') : ''
   const id = parseInt(req.query.ids)
   const data = {
-    "id": id,
+    // "id": id,
 		'c': JSON.stringify([{ id: id }]),
 		"ids": '[' + id + ']',
 		"csrf_token": ""
   }
+  console.log(data)
   createWebAPIRequest(
     'music.163.com',
     '/weapi/v3/song/detail',