diff --git a/Chapter 2-3 极限/根值判别法.md b/Chapter 2-3 极限/根值判别法.md
index c4d157b..8e31796 100644
--- a/Chapter 2-3 极限/根值判别法.md	
+++ b/Chapter 2-3 极限/根值判别法.md	
@@ -5,7 +5,7 @@
 ## Quick Description
 
   
-
+-----
 ### 原理