5264be30 docs: Release notes for 0.13.8. (1603)
Docker images
- `docker pull determinedai/determined-master:0.13.9`
- `docker pull determinedai/determined-master:3f0ec0ce`
- `docker pull determinedai/determined-master:3f0ec0ce8d9dbe4256a630156480661f3a8c2ff1`
- `docker pull determinedai/determined-dev:determined-master-3f0ec0ce`
- `docker pull determinedai/determined-dev:determined-master-3f0ec0ce8d9dbe4256a630156480661f3a8c2ff1`