kindle manager

changelog.md

@@ -72,10 +72,13 @@ b['1']['2'] = {'3':1}  # OK
   so I need to use resouce file(.qrc) to manage resouce(icons),
   and generator rcc binnay file, must kmanapp\_rc.py
   command: pyside2-rcc -binary kmanapp.qrc -o kmanapp\_rc.py
+- use QTime to check kindle kindle is connected or not
 
 # feature plan
 ## 20200528
 - first abstract from kindle hard / local directory for different OS **done**
 - add GUI use QT **done**
-- new thread to check kindle connection status
+- use thread to check kindle connection status **XXXX**
+- export function
+