docs: Documentation page on certificate management has a broken link to example files

[Kowsz]

Issue description

Hello,

Apache APISIX documentation page Manage Ingress Certificates With Cert Manager link to example cert-manager manifests is broken. The link https://apisix.apache.org/docs/ingress-controller/practices/cert-manager returns a 404 error.

Best regards,
Kowsz

Environment

not applicable

Minimal test code / Steps to reproduce

1. Go to https://apisix.apache.org/docs/ingress-controller/practices/manage-ingress-certificates-with-cert-manager/
2. Click on the "For testing purposes, we will use a simple CA issuer. All required files can be found here." link

Actual result

Error log

not applicable

Expected result

The webserver serves the correct files

[tao12345666333]

Thanks for your report, it should link to https://github.com/apache/apisix-ingress-controller/tree/master/docs/en/latest/practices/cert-manager

Are you interested in submitting a PR to fix it?

[Kowsz]

Yeah, sure.
As far as I can tell, the files to be updated are:

1. /docs/en/latest/practices/manage-ingress-certificates-with-cert-manager.md
2. /docs/en/latest/practices/manage-certificates-with-cert-manager.md

Should I also bump the patch version in /docs/en/latest/config.json?

[tao12345666333]

only update the two markdown files. Thanks