update README.md

RuoYi

2026-01-28 6c6a2c06230023f007c479d496c839330fb898ea

 ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/exception/ServiceException.java

@@ -49,6 +49,7 @@
        return detailMessage;
    }

    @Override
    public String getMessage()
    {
        return message;