diff --git a/.DS_Store b/.DS_Store
index d44b166..5061f30 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/README.md b/README.md
index 9ab7a5b..8df005e 100755
--- a/README.md
+++ b/README.md
@@ -1,10 +1,9 @@
 
-# kindle manager
+# Kindle Manager
 ---
 
 > ### 找不到趁手的APP，本意自写自用兼练手，零星写了几天觉得得心应手，也许可以做的更好吧
-<br>
-
+后端 python, 前端GUI PySide2
 ![mainwindow.png](https://i.loli.net/2020/06/16/1TDvqCOnFmegUsy.png)
 
 ## CHANGE LOG
@@ -14,6 +13,7 @@
 
 ## 版权等问题
 1. 对于自己笔记涉及的书，会去douban/amazon，爬取少量bookinfo，不知算不算侵权
+1. 图标来自https://findicons.com/，不知有没有版权
 1. 所有code系本人码出，如有借用，会在注释中以refrence说明
 1. 其他问题，望告知, [gavin's mail address](douboer@gmail.com)
 
diff --git a/kmanapp.py b/kmanapp.py
index 86611bf..311ef5f 100644
--- a/kmanapp.py
+++ b/kmanapp.py
@@ -79,7 +79,7 @@ class kmanWindow(QMainWindow):
         #     2. kindle(My Clippings.txt) ->
         #     3. local file(config) ->
         flg = 0
-        if  os.path.exists(BACKUPNOTEFN) and os.path.exists(BACKUPWORDFN):
+        if os.path.exists(BACKUPNOTEFN) and os.path.exists(BACKUPWORDFN):
             self.books_data = self.km.json2dict(BACKUPNOTEFN)
             self.words_data = self.km.json2dict(BACKUPWORDFN)
             if (len(self.books_data)*len(self.words_data[0]))>=1: