Add PopClip extension in READMEs

README.md

@@ -65,6 +65,16 @@ rssbud://x-callback-url/analyze?url[&x-callback-parameters...]
 - **feed_title** The name of the RSS feed chosen by the user
 - **feed_url** The URL of the RSS feed chosen by the user
 
+## PopClip Extension
+If you happen use both RSSBud and [PopClip](https://pilotmoon.com/popclip/) on macOS, here's a handy  extension that can be used to analyze selected URLs with RSSBud. Simply select everything in the code block below and you will see an option to install the extension in PopClip.
+
+```yaml
+#popclip
+name: RSSBud
+icon: iconify:ph:rss-bold
+url: rssbud:///analyze?url=***
+```
+
 ## Notes for Building from Source
 The core functionality of RSSBud comes from [RSSBud Core](https://github.com/Cay-Zhang/RSSBud/tree/main/Shared/Core), a sub-project written in JavaScript. The code is mainly referenced from [RSSHub Radar](https://github.com/DIYgod/RSSHub-Radar).
 

README.zh-CN.md

@@ -65,6 +65,16 @@ rssbud://x-callback-url/analyze?url[&x-callback-parameters...]
 - **feed_title** 用户选择的 RSS 源的名称
 - **feed_url** 用户选择的 RSS 源的 URL
 
+## PopClip 插件
+如果你在 macOS 上同时使用 RSSBud 和 [PopClip](https://pilotmoon.com/popclip/)，这个插件可以让你在 PopClip 中分析选中的 URL。只需选中下面代码块中的所有内容，你就会在 PopClip 中看到安装该插件的选项。
+
+```yaml
+#popclip
+name: RSSBud
+icon: iconify:ph:rss-bold
+url: rssbud:///analyze?url=***
+```
+
 ## 自行编译须知
 RSSBud 的核心功能来自 [RSSBud Core](https://github.com/Cay-Zhang/RSSBud/tree/main/Shared/Core)，一个用 JavaScript 编写的子项目。代码主要参考 [RSSHub Radar](https://github.com/DIYgod/RSSHub-Radar)。