Update kixi.io to point to new documentation

[doug-devx]

Currently kixi.io redirects to the KD Data page in the Wiki.

When the new docs are ready it should be updated to point to the KD Data page on the docs site.

We could also point docs.kixi.io to the docs site.

This requires DNS updates probably, depending on how it's set up.

[doug-devx]

Docs site url: https://kixi-io.github.io/Ki.Docs/