docs: update demo and FAQ links for consistency and improved navigation

README.md

@@ -544,7 +544,7 @@ You can use MinerU for PDF parsing through various methods such as command line,
 
 # FAQ
 
-- If you encounter any issues during usage, you can first check the [FAQ](https://opendatalab.github.io/MinerU/FAQ/) for solutions.  
+- If you encounter any issues during usage, you can first check the [FAQ](https://opendatalab.github.io/MinerU/faq/) for solutions.  
 - If your issue remains unresolved, you may also use [DeepWiki](https://deepwiki.com/opendatalab/MinerU) to interact with an AI assistant, which can address most common problems.  
 - If you still cannot resolve the issue, you are welcome to join our community via [Discord](https://discord.gg/Tdedn9GTXq) or [WeChat](http://mineru.space/s/V85Yl) to discuss with other users and developers.
 

README_zh-CN.md

@@ -531,7 +531,7 @@ MinerU提供了便捷的docker部署方式，这有助于快速搭建环境并
 
 # FAQ
  
-- 如果您在使用过程中遇到问题，可以先查看[常见问题](https://opendatalab.github.io/MinerU/zh/FAQ/)是否有解答。  
+- 如果您在使用过程中遇到问题，可以先查看[常见问题](https://opendatalab.github.io/MinerU/zh/faq/)是否有解答。  
 - 如果未能解决您的问题，您也可以使用[DeepWiki](https://deepwiki.com/opendatalab/MinerU)与AI助手交流，这可以解决大部分常见问题。  
 - 如果您仍然无法解决问题，您可通过[Discord](https://discord.gg/Tdedn9GTXq)或[WeChat](http://mineru.space/s/V85Yl)加入社区，与其他用户和开发者交流。
 

docs/en/demo.md

-<script
-	type="module"
-	src="https://gradio.s3-us-west-2.amazonaws.com/5.35.0/gradio.js"
-></script>
-
-<gradio-app src="https://opendatalab-mineru.hf.space"></gradio-app>
+<iframe src="https://opendatalab-mineru.hf.space" frameborder="0" width="850" height="450"></iframe>