Update README.md

Replace screenshot.

Author: kyanny

README.md

@@ -1,4 +1,4 @@
 # alfred-workflow-time-duration-calculator
 Calculate time duration like 10:15-12:00,13:45-15:30 => 3.5 (3 hours 30 minutes)
 
-<img width="574" alt="Screen Shot 2022-10-04 at 14 54 45" src="https://user-images.githubusercontent.com/10515/193745257-d549322e-bd63-43c8-b8fd-f5d9ad3aada9.png">
+<img width="570" alt="Screen Shot 2022-10-07 at 10 27 07" src="https://user-images.githubusercontent.com/10515/194447144-fa6dca16-4da6-4e10-bb8c-5216b89ec876.png">