diff --git a/ochijehfranklin/README.md b/ochijehfranklin/README.md
index 5353d71..ebd65b6 100644
--- a/ochijehfranklin/README.md
+++ b/ochijehfranklin/README.md
@@ -1 +1,20 @@
-This is my contribution to Algorithmia Open Source project
+This is my contribution to the Algorithmia Open Source Demo Project.
+
+This directory contains my solution for the basic C calculator.
+
+This calculator is built in C, and performs basic arithmetic calculations:
++ Addition
++ Subtraction
++ Division      and
++ Subtraction
+
+This calculator takes in two numbers and an arithmetic operator (any of + , - , * and / ) as standard input from the user, and returns the result of the arithmetic operation.
+
+It also handles errors from the user:
++ Wrong input when called for numbers
++ Invalid arithmetic operator
+
+To use this calculator:
+1. Clone this repo:     `git clone https://github.com/ALX-SE-Algorithmia/Demo-Project/`
+2. Navigate into this directory:   `cd ochijehfranklin`
+3. Run this command:     `gcc calculator.c -o calculator ; ./calculator`