diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,16 +1,18 @@
 # Introduction to Git and GitHub
 
 ## Simple Interest Calculator
+HEAD
+A calculator that calculates the  simple interest given principal, annual rate of interest and time period in years.
 
-A calculator that calculates simple interest given principal, annual rate of interest and time period in years.
+A calculator that calculates the simple interest given principal, annual rate of interest and time period in years.
+3d36c90d522725cc2dc6f858606ef8fdc43a4019
 
-```
-Input:
+Input is :
    p, principal amount
    t, time period in years
    r, annual rate of interest
 Output
    simple interest = p*t*r
-```
+
 
 _© 2022 XYZ, Inc._