From 030d9251bc8c17fa1cf83d5293c9224494366e7e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=BA=90=E6=96=87=E9=9B=A8?=
 <41315874+fumiama@users.noreply.github.com>
Date: Sat, 30 Jul 2022 11:42:44 +0800
Subject: [PATCH] edit README

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index d47b172..268f490 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ Detect duplicated images and gather each group into a unique subfolder.
 ## usage
 ```powershell
 Usage: dupimage [-adhst] ext1 ext2...
+  -D    enable debug-level log output
   -a    action sort
   -d string
         work directory (default "./")