Contributing document has broken links

[Benehiko]

Description

Getting 404 on some of the links inside CONTRIBUTING.md

[our style
guide](https://docs.docker.com/opensource/doc-style) and instructions on [building
the documentation](https://docs.docker.com/opensource/project/test-and-docs/#build-and-test-the-documentation).

https://github.com/docker/cli/blob/master/CONTRIBUTING.md?plain=1#L127

Reproduce

Navigate to https://github.com/docker/cli/blob/master/CONTRIBUTING.md#conventions and click on our style and building the documentation.

Expected behavior

No response

docker version

N/A

docker info

N/A

Additional Info

No response

[Benehiko]

Fixed in #5417