Adding file extensions enables link checking by docusaurus.

Since /news is not part of /docs and no index.md file for /news exists, a static URL is acceptable here.

Submission API: Don't include prerelease versions for v1

Routing API: "latest" does not exist for Routing API

Routing API: 1.0.0-rc.1 does not match verion "1.*" -> change version to "*"

Versioned docs now include pre-releases of v1.*

Explcitely set version to latest in unversioned docs.