diff --git a/README.md b/README.md
index fd4c78ca30e767f605b0602f16b7e2decceedea7..a63f7f8099de5a5a0433ca08b8bb8ef783e9dec9 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ There are 3 steps in this tutorial.
 ## Step 0. Before we start! You have to prepare...
 
 In this part, I'll show a example code of self-rotating 3d cube and a example output of it.\
-[https://git.ajou.ac.kr/Jiyoung_Moon/mouse-drag-for-transform-camera/-/raw/master/self-rotating-cube.gif](https://git.ajou.ac.kr/Jiyoung_Moon/mouse-drag-for-transform-camera/-/raw/master/self-rotating-cube.gif)
+[https://git.ajou.ac.kr/Jiyoung_Moon/mouse-drag-for-transform-camera/-/raw/master/self-rotating-cube.gif](https://git.ajou.ac.kr/Jiyoung_Moon/mouse-drag-for-transform-camera/-/raw/master/self-rotating-cube.gif)\
 This code is used for the next steps.
 
 ## Step 1. Remove some codes.
@@ -39,8 +39,6 @@ Also, in this part, there are some parts that could be hard to understand, so I
 
 At the end, the students can make his/her own mouse dragging tranformation of camera.\
 Also, the students can try mouse dragging to transform camera.\
-[https://git.ajou.ac.kr/Jiyoung_Moon/mouse-drag-for-transform-camera/-/blob/master/final.gif](https://git.ajou.ac.kr/Jiyoung_Moon/mouse-drag-for-transform-camera/-/blob/master/final.gif)
-[](https://git.ajou.ac.kr/Jiyoung_Moon/mouse-drag-for-transform-camera/-/blob/master/final.gif)
 [https://git.ajou.ac.kr/Jiyoung_Moon/mouse-drag-for-transform-camera/-/raw/master/final.gif](https://git.ajou.ac.kr/Jiyoung_Moon/mouse-drag-for-transform-camera/-/raw/master/final.gif)
 
 ## Result