GitLab

- Comment out PaddlePaddle GPU installation in Dockerfile
- Add OCR model download URL in download_models.py
- Update config version in magic-pdf.json
- Remove outdated information and simplify README.md
- Remove volume creation for PaddleOCR models in Dockerfile

- Update PyPI mirror from Tsinghua to Aliyun in multiple Dockerfiles and installation scripts
- This change may improve package download speed and reliability for users in China

Add the web_api project to the lists of projects in both the English and Chinese
README.md files, providing a brief description and linking to the project's
documentation. Ensure that the formatting and style are consistent with the
existing project entries.

* features@add mineru gpu&web_api

* features@update api