Update docs/minio-admin-complete-guide.md

Co-Authored-By: kannappanr <30541348+kannappanr@users.noreply.github.com>

docs/minio-admin-complete-guide.md

@@ -313,7 +313,7 @@ Server `play` updated successfully from RELEASE.2019-08-14T20-49-49Z to RELEASE.
 
 > NOTE:
 > - An alias pointing to a distributed setup this command will automatically update all MinIO servers in the cluster.
-> - `update` is an disruptive operations for your MinIO service, any on-going API operations will be forcibly canceled. So, it should be used only when you are planning MinIO upgrades for your deployment.
+> - `update` is a disruptive operation for your MinIO service, any on-going API operations will be forcibly canceled. So, it should be used only when you are planning MinIO upgrades for your deployment.
 > - It is recommended to perform a restart after `update` successfully completes.
 
 <a name="service"></a>