Update README.md

Author: anshumanjadiya1102

README.md

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+# 💻 MyCMD – A Custom Command Prompt in Java
+
+![Build](https://img.shields.io/badge/build-passing-brightgreen)
+![Java](https://img.shields.io/badge/java-17+-blue)
+![License](https://img.shields.io/badge/license-Apache-orange)
+![Platform](https://img.shields.io/badge/platform-Windows%20%7C%20Linux-lightgrey)
+
+**MyCMD** is a fully custom **command prompt** implemented in Java.  
+It mimics the behavior of Windows `cmd.exe` with commands like `dir`, `cd`, `echo`, `mkdir`, `del`, and more — plus it has its own installer.
+
+---
+
+## 📂 Project Structure
+