diff --git a/Graph Algorithms/README.md b/Graph/README.md
similarity index 100%
rename from Graph Algorithms/README.md
rename to Graph/README.md
diff --git a/README.md b/README.md
index 9c26fde..06bd396 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@
 * 数据压缩
 
 
-### 二叉树
+### 树
 
 * 二叉树    
 * 二叉查找树   
@@ -136,7 +136,7 @@
 * 分治算法  
 
 
-## 算法问题选编
+## 算法题目选编
 
 这是一个算法题目合集，题目是我从网络和书籍之中整理而来，部分题目已经做了思路整理。问题分类包括：
 
diff --git a/Search Algorithms/README.md b/Search/README.md
similarity index 100%
rename from Search Algorithms/README.md
rename to Search/README.md