Update README.md

Author: ashrafulalamasad

README.md

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-# JavaScript-DOM-DateTime-on-button-click
+# JavaScript-DOM-DateTime-on-button-click
+
+<br> 
+
+# 📅🕒 Display Date and Time ⏰✨
+
+A simple webpage created as a **university assignment** 🎓 that shows the current date and time 🗓️🕰️ when you click the "Show Date & Time" button . Built with HTML, CSS, and JavaScript 💻, featuring a clean and modern design 🎨.
+
+<br> 
+
+## 🚀 Features
+
+- 🎨 Gradient background with modern style  
+- 🎯 Button with hover effects and smooth animation  
+- ⏳ Displays current date and time dynamically on click  
+
+<br> 
+
+## 🛠️ How to Use
+
+1. 🌐 Open `index.html` in your browser.  
+2. 👆 Click the **Show Date & Time** button.  
+3. 🕒 See the current date and time displayed beside the button!  
+
+<br> 
+
+## 💻 Technologies Used
+
+- 🌐 HTML  
+- 🎨 CSS  
+- ⚙️ JavaScript  
+
+---
+
+Thanks for checking out my project! 🙌😊