Update README.md

Author: sounddrill31

README.md

@@ -1,3 +1,9 @@
 # untitled-upi-for-android-4
 UPI and card POS system for android 4 and above. 
 WIP, doesn't work yet
+
+Mockup:
+![mockup2](https://github.com/Zeus-Institute-of-Technology-Solutions/untitled-upi-for-android-4/assets/84176052/8373ea02-d586-4cbe-8086-56e6b384238d)
+
+Disclaimer:
+UPI Qr is not mine, all rights to https://upiqr.in/?name=SHAKTI&vpa=SHAKTI.41215081@hdfcbank&print=true