Update README.md

Author: imDarshanGK

README.md

@@ -1,2 +1,9 @@
-# Caesar Cipher Python
-Encryption and Decryption
+# Caesar Cipher in Python 🔐
+
+## Overview
+This repository contains a Python implementation of the Caesar Cipher encryption algorithm. The Caesar Cipher is a substitution cipher where each letter in the plaintext is shifted by a fixed number of positions in the alphabet.
+
+## Features
+- Encrypts and decrypts text using a Caesar Cipher.
+- Easy to use with user input.
+- Simple Python implementation for educational purposes.