http://dubbo.apache.org/en-us/docs/user/preface/requirements.html里面的图是中文的

- [ yes] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
- [ yes] I have checked the [FAQ](https://github.com/apache/dubbo/blob/master/FAQ.md) of this repository and believe that this is not a duplicate.

### Environment

* Dubbo version: xxx
* Operating System version: xxx
* Java version: xxx

### Steps to reproduce this issue
http://dubbo.apache.org/en-us/docs/user/preface/requirements.html
open this url，there are a diagram in chinese

Pls. provide [GitHub address] to reproduce this issue.

### Expected Result

What do you expected from the above steps？

### Actual Result

What actually happens?

If there is an exception, please attach the exception trace:

```
Just put your stack trace here!
```

Open the linked English requirements page and inspect the Chinese diagram, then locate the corresponding page source and image asset in the dubbo-website repository. Replace or update the diagram so its content is appropriate for the English page, and verify the rendered URL displays the corrected image.

Written by the indexing model from the issue text.