added readme file project description

README.md

@@ -1,4 +1,18 @@
-## Simple Calculator Using JavaScript
+# Simple Calculator Using JavaScript
+
+### Project Description
+
+This project is a simple calculator implemented using HTML, Tailwind CSS, and JavaScript. It allows users to perform basic arithmetic operations such as addition, subtraction, multiplication, and division. The calculator interface is designed using HTML and styled using Tailwind CSS. JavaScript is used to handle user input and perform the calculations using the `onclick` event and the `eval` function. The calculator displays the result of the calculation in the input field when the user clicks the equal sign button.
+
+### Project Features
+
+- Addition (+)
+- Subtraction (-)
+- Multiplication (\*)
+- Division (/)
+- Clear (AC)
+- Delete (DEL)
+- Equal (=)
 
 ### Using Tools
 
@@ -11,6 +25,6 @@
 - onclick
 - eval
 
-### Live Preview
+### Project Preview
 
-<a href="https://md-rejoyan-islam.github.io/simple-calculator-using-javascript/">Preview </a>
+[Click to Preview](https://md-rejoyan-islam.github.io/simple-calculator-using-javascript)