diff --git a/Calculator/src/Calculator.java b/Calculator/src/Calculator.java
index 61578ff..926f51b 100644
--- a/Calculator/src/Calculator.java
+++ b/Calculator/src/Calculator.java
@@ -12,7 +12,9 @@
 import javax.swing.JTextField;
 import javax.swing.SwingUtilities;
 
-
+/* 
+ * Main Calculator UI class
+ */
 public class Calculator {
    private static final float BTN_FONT_SIZE = 20f; 
    private static final String[][] BTN_LABELS = {
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a01e8b0
--- /dev/null
+++ b/README.md
@@ -0,0 +1,16 @@
+Simple Calculator
+
+This project is a simple calculator desktop application implemented using java.
+
+>>> Features
+
+* Addition
+* Subtraction
+* Multiplication
+* Division
+
+GUI is updated with better UI/UX
+
+This is developed to learn implemnting GUI Applications
+
+Update: added comments and refactor the code.
\ No newline at end of file