index-gw sts doc fix. closes #4583 (#4616)
index-gw sts doc fix. closes #4583 (#4616)

* index-gw sts doc fix. closes #4583

* Update docs/sources/operations/storage/boltdb-shipper.md

Co-authored-by: Kaviraj <19660b12f5b7dd460f9c2ff1e7a1a94ff64f595e@gmail.com>

Co-authored-by: Kaviraj <19660b12f5b7dd460f9c2ff1e7a1a94ff64f595e@gmail.com>
grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki