Update schedule-replicas-by-topology-labels.md (#4465)
Update schedule-replicas-by-topology-labels.md (#4465)

Signed-off-by: disksing <042dc4512fa3d391c5170cf3aa61e6a638f84342@disksing.com>

Co-authored-by: TomShawn <3d0966147538bc5ab020e8dffa2c0b746f9728a6@users.noreply.github.com>
pingcap/docs-cn,pingcap/docs-cn