docs: update README

README.md

@@ -425,7 +425,7 @@ easydict://writeKeyValue?EZDeepLTranslationAPIKey=2
 具体步骤是，使用浏览器打开 [Bing Translator](https://www.bing.com/translator)，登录，然后在控制台执行以下代码获取 cookie
 
 ```js
-cookieStore.get("MUID").then(result => console.log(encodeURIComponent("MUID=" +result.value)));
+cookieStore.get("MUID").then(result => console.log(encodeURIComponent("MUID=" + result.value)));
 ```
 
 最后将 cookie 使用命令写入 Easydict
@@ -435,6 +435,8 @@ cookieStore.get("MUID").then(result => console.log(encodeURIComponent("MUID=" +r
 easydict://writeKeyValue?EZBingCookieKey=xxx
 ```
 
+> 注意，Bing TTS 用的也是网页接口，同样容易触发接口限制，且不会报错提示，因此如果将 Bing 设为默认的 TTS，建议设置 cookie。
+
 ## 智能查询模式
 
 目前查询服务主要分为两类：查询单词（如苹果词典）和翻译文本（如 DeepL），另外有些服务（如有道和谷歌），同时支持查询单词和翻译文本。

README_EN.md

@@ -429,6 +429,8 @@ Finally, use the command to write the cookie in Easydict
 easydict://writeKeyValue?EZBingCookieKey=xxx
 ```
 
+> Note that Bing TTS also uses a web interface, which is also easy to trigger interface restrictions and does not report errors, so if you set Bing to the default TTS, it is recommended to set cookies.
+
 ## Smart query mode
 
 Currently, there are two main types of lookup services: vocabulary lookup (e.g., Apple Dictionary) and translating text (e.g., DeepL), and there are also some services (e.g., Yudao and Google) that support both vocabulary lookup and translating text.