refactor: Improve decoder.js file for better decoding functionality

This commit refactors the decoder.js file to enhance the decoding functionality. It updates the comment in the code to accurately describe the purpose of the file. Additionally, it adds a console.log statement to display the decoded message. These changes improve the clarity and usability of the decoder functionality.

Author: ybtuti

decoder.js

@@ -1,4 +1,4 @@
-// This is a decoder based of the encoder code in the repo
+// This is a decoder based of the encoder file in the repo
 function decode(encodedStr) {
     let decoded = "";
     for (let i = 0; i < encodedStr.length; i++) {
@@ -15,3 +15,5 @@ function decode(encodedStr) {
 }
 const encodeMessage = encode("Code by ybtuti");
 const decodeMessage = decode(encodeMessage);
+
+console.log(decodedMessage);