Update README.md

Author: Swap76

README.md

@@ -32,6 +32,14 @@ $ npm run lint:fix
 
 ## References
 
-1. [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript)
+### [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript)
+One of the famous reference site for Javascript, it introduces from beginning to the advance concept
 
-2. [w3schools](https://www.w3schools.com/js/)
+### [w3schols.com](https://www.w3schools.com/js/)
+W3Schools is an educational website for learning web technologies online. Content includes tutorials and references relating to HTML, CSS, JavaScript
+
+### [The Modern JavaScrit Tutoial](https://javascript.info/)
+This web site introduces JavaScript with well-sorted topics, so it helps to see overview
+
+### [TutorialPoint](https://www.tutorialspoint.com/index.htm)
+They provides a vaiety of media such as video, eBooks, so it would be helpful, it you look for another learning materials