diff --git a/README.md b/README.md
index 0a3a7d7..2f5cb4a 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
-# xor
+# XOR
+## XOR Encryption & Decryption program.
 
-XOR Encryption & Decryption program.
\ No newline at end of file
+### How to use?
+**Encryption** `python xor.py enc "SECRETE MESSAGE" "KEY"`
+**Decryption** `python xor.py dec "CIPHERTEXT IN BINARY" "KEY IN BINARY"`