update: readme

README.md

@@ -63,6 +63,12 @@ Libraries used in the project:
 7. No internet connection
 ![no internet screenshot](./screenshot/no_internet.png)
 
+8. Add Transaction
+![add transaction screenshot](./screenshot/add_transaction.png)
+
+9. Randomize Transaction
+![randomize transaction screenshot](./screenshot/randomize_transaction.png)
+
 ## How to Run
 
 1. Clone this repository