Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: cmliu

README.md

@@ -159,9 +159,9 @@
    ```
 
 - 指定 `Trojan fallback` 案例（由于使用场景为自建对接, 仅 Trojan 入站，fallback 服务需为同密码、非 WebSocket、非 TLS. 此时 UDP 透传给 fallback, 性能优秀, 功能完整）
-  ```url
-  /trojan=1.1.1.1:1234
-  ```
+   ```url
+   /trojan=1.1.1.1:1234
+   ```
 
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