[DOCS ISSUE] (paths for docker wrong)

```bash
docker run -d --name ipfs_host -v $ipfs_staging:/export -v $ipfs_data:/data/ipfs -p 4001:4001 -p 4001:4001/udp -p 127.0.0.1:8080:8080 -p 127.0.0.1:5001:5001 ipfs/kubo:latest
```

gives an error when adding files with `--nocopy` because inside the container `/export` is not inside ipfs root.