add privacy policy

Author: scola

Privacy_Policy.md

@@ -0,0 +1,14 @@
+### Privacy Policy
+
+We promise that only proper permission will be used in this application
+
+* CAMERA 
+  
+  we just use camera to scan QR code. Application do not take photo or record video
+  
+* READ&WRITE EXTERNAL_STORAGE
+  
+   we only read user select image from external storage. Application write generated QR image  and some configuration into external storage
+
+Application do not collect any user information. if you're interested any detail of the application. Please visit [here](https://github.com/scola/Qart)
+