Documented HostRegexp rule is broken for Traefik v3

[theriverman]

Is there an existing issue for this?

• I have searched the existing issues
• And it has nothing to do with Traefik

Describe the bug

Hi,

The wiki needs to be updated based on the findings in this discussion: #275

Traefik v3 introduces some change to regex handling and the current wiki version of tarampampam/error-pages suggests an invalid configuration option.

Steps to reproduce

Try using the official documentation with Traefik v3

Configuration files

# Wrong
traefik.http.routers.error-pages-router.rule: HostRegexp(`{host:.+}`)

# Good
traefik.http.routers.error-pages-router.rule: HostRegexp(`.+`)

Relevant log output

N/A

Anything else?

N/A

[tarampampam]

The wiki pages were updated, thank you very much! <3