From de21935a8c81dcf074ce866342c836d135c977b0 Mon Sep 17 00:00:00 2001
From: Jason Lee <huacnlee@gmail.com>
Date: Thu, 29 Sep 2016 15:16:53 +0800
Subject: [PATCH] Update README.md

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

diff --git a/README.md b/README.md
index 58328fb..1df6a8b 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ Idea by: https://ruby-china.org/topics/20558#reply4
 #### Ubuntu
 
 ```
-sudo apt-get install imagemagick
+sudo apt-get install imagemagick ghostscript
 ```
 
 #### Mac OS X