Update QR scanner string
<!-- //////////////// scan //////////////// -->
<string name="scan_request_camera_access">Grant camera permission</string>
- <string name="scan_instructions">Place a payment request QR code\ninside the rectangle to scan it</string>
+ <string name="scan_instructions">Scan a QR code containing a payment request or bitcoin address</string>
<string name="scan_state_reading">Reading payment request</string>
<string name="scan_error_default">This is not a valid payment request.\n\nPlease try again.</string>
