Update project link in README

- Change project name from 'PDFImg2Excel' to 'SBOPC'
- Update link description for clarity

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -50,7 +50,7 @@ table_engine = PPStructure(
 ## 相关项目
 
 - [PaddleOCR](https://github.com/PaddlePaddle/PaddleOCR)
-- [PDFImg2Excel (GitHub)](https://github.com/A-smile-cat/SBOPC)
+- [SBOPC (GitHub)](https://github.com/A-smile-cat/SBOPC)
 - [PDFImg2Excel (Gitee)](https://gitee.com/smilecatt/pdfimg2-excel)
 
 ## 许可证