feat: update README.md and add LICENSE file

Author: SagarBiswas-MultiHAT

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Sagar Biswas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,4 +1,16 @@
-# Bank Account Management System (Tkinter + SQLite + Argon2id)
+# Bank Account Management System 
+(Tkinter + SQLite + Argon2id)
+
+<div align="right">
+
+[![CI](https://github.com/SagarBiswas-MultiHAT/BankingSystem-SQLite-Argon2-PyTk/actions/workflows/python-ci.yml/badge.svg)](https://github.com/SagarBiswas-MultiHAT/BankingSystem-SQLite-Argon2-PyTk/actions/workflows/python-ci.yml)
+[![Python](https://img.shields.io/badge/python-3.10%2B-blue)](https://www.python.org/)
+[![Tests](https://img.shields.io/badge/tests-pytest-brightgreen)](https://github.com/SagarBiswas-MultiHAT/BankingSystem-SQLite-Argon2-PyTk/actions)
+[![License](https://img.shields.io/github/license/SagarBiswas-MultiHAT/BankingSystem-SQLite-Argon2-PyTk)](https://github.com/SagarBiswas-MultiHAT/BankingSystem-SQLite-Argon2-PyTk/blob/main/LICENSE)
+[![Last commit](https://img.shields.io/github/last-commit/SagarBiswas-MultiHAT/BankingSystem-SQLite-Argon2-PyTk)](https://github.com/SagarBiswas-MultiHAT/BankingSystem-SQLite-Argon2-PyTk)
+[![Issues](https://img.shields.io/github/issues/SagarBiswas-MultiHAT/BankingSystem-SQLite-Argon2-PyTk)](https://github.com/SagarBiswas-MultiHAT/BankingSystem-SQLite-Argon2-PyTk/issues)
+
+</div>
 
 A desktop Bank Account Management System built with Python and Tkinter. It supports admin and customer workflows, stores data in SQLite, and secures credentials with **Argon2id** hashing. The UI is intentionally simple and fast, while the backend focuses on correctness and safety.
 
@@ -12,6 +24,8 @@ If you read only this README, you should understand how the system works, how th
 
 <br>
 
+<div align=center>
+
 ![](https://imgur.com/yxAGTh6.png)
 
 ---
@@ -40,6 +54,8 @@ If you read only this README, you should understand how the system works, how th
 
 ---
 
+</div>
+
 </details>
 
 ## What This App Does
@@ -283,5 +299,3 @@ README.md
 - On Linux, install `python3-tk` via your package manager.
 
 ---
-
-If you want, I can also add a small database viewer or export/report feature next.