From a53bdfdba37046a0bac504e049b0ca8e3233a77a Mon Sep 17 00:00:00 2001
From: Shawn Shan <shansixioing@uchicago.edu>
Date: Tue, 28 Jul 2020 12:27:03 -0500
Subject: [PATCH] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 49c7754..912baf6 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ Usage
 
 Options:
 
-* `-m`, `--mode`       : the tradeoff between privacy and perturbation size
+* `-m`, `--mode`       : the tradeoff between privacy and perturbation size. Select from `low`, `mid`, `high`. 
 * `-d`, `--directory`  : the directory with images to run protection 
 * `-g`, `--gpu`        : the GPU id when using GPU for optimization
 * `--batch-size`       : number of images to run optimization together