Update README.md

Author: zeevy

README.md

@@ -40,5 +40,4 @@
 - Markus Junginger https://github.com/greenrobot/EventBus
 - Felipe Herranz https://github.com/felHR85/UsbSerial
 - nbsp-team https://github.com/nbsp-team/MaterialFilePicker
-- Arun Sharma https://github.com/DroidNinja/Android-FilePicker
-- Xiao https://github.com/woxingxiao/BubbleSeekBar
+- Chuang Guangquan https://github.com/warkiz/IndicatorSeekBar