update

public/categories/rss.xml

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+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+  <channel>
+    <title>Categories | 优世界</title>
+    <link>https://usj.cc/categories/rss.xml</link>
+      <atom:link href="https://usj.cc/categories/rss.xml" rel="self" type="application/rss+xml" />
+    <description>Categories</description>
+    <generator>Source Themes Academic (https://sourcethemes.com/academic/)</generator><language>zh-cn</language><lastBuildDate>Sun, 02 Jun 2024 11:36:00 +0000</lastBuildDate>
+  </channel>
+</rss>