Simple project to get feedback of community!

Hey people,
I developed this code to attend a requisite of a college work, i’m entering to world of development and searching make a circle that i can contribute and get feedback, please give a look at my code, say something that comes in your mind and i will be very happy.

if my english looks silly, it happens why i’m giving all efforces to learn code and be fluent in this amazing language.
:upside_down_face:
https://github.com/AndrewsSouz/Treasury