From 8606bc03d7b3b72dd1e879f201bfe35b6cad0b7a Mon Sep 17 00:00:00 2001
From: Wang Jie <wangjie5@chinaskycloud.com>
Date: Tue, 10 Oct 2017 22:06:26 +0800
Subject: [PATCH] Update index.md (#4865)

Should "an" be used here?
---
 .../dtr/2.3/guides/admin/configure/external-storage/index.md    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/datacenter/dtr/2.3/guides/admin/configure/external-storage/index.md b/datacenter/dtr/2.3/guides/admin/configure/external-storage/index.md
index a882dd739c..dd3a2d9d29 100644
--- a/datacenter/dtr/2.3/guides/admin/configure/external-storage/index.md
+++ b/datacenter/dtr/2.3/guides/admin/configure/external-storage/index.md
@@ -64,7 +64,7 @@ $(dirname $(docker volume inspect --format '{{.Mountpoint}}' dtr-registry-<dtr-r
 
 ## NFS
 
-You can configure your DTR replicas to store images on a NFS partition, so that
+You can configure your DTR replicas to store images on an NFS partition, so that
 all replicas can share the same storage backend.
 
 [Learn how to configure DTR with NFS](nfs.md).