Most of them are already moved to the site repo:
https://git.picodata.io/picodata/picodata/docs/-/tree/97c3e35ec/docs

- `clustering.md` -> https://docs.picodata.io/picodata/clustering/
- `glossary.md` -> https://docs.picodata.io/picodata/glossary/
- `cli.md` -> https://docs.picodata.io/picodata/cli/
- `discovery.md` -> https://docs.picodata.io/picodata/discovery/
- `sharding.md` -> /dev/null
- `topology.md` -> https://docs.picodata.io/picodata/deploy/