Broken link in the docs

[nickdf-imrsv]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

In the Headers docs, the the "proxy headers" hyperlink is broken.

Code snippet

Here's the offending line in the documentation markdown.

### Proxy headers

Sanic has special handling for proxy headers. See the [proxy headers](/guide/advanced/proxy-headers.md) section for more details.

Expected Behavior

I expect to be linked to documentation that exists.

How do you run Sanic?

Sanic CLI

Operating System

Linux

Sanic Version

25.3

Additional context

No response