[javascript/en] fix links

javascript.md

@@ -632,42 +632,21 @@ const add = (firstNumber, secondNumber) => {
 
 ## Further Reading
 
-The [Mozilla Developer Network][1] provides excellent documentation for
-JavaScript as it's used in browsers. Plus, it's a wiki, so as you learn more you
-can help others out by sharing your own knowledge.
+The [Mozilla Developer Network](https://developer.mozilla.org/en-US/docs/Web/JavaScript) (MDN) provides excellent documentation for
+JavaScript as it's used in browsers.
 
-MDN's [A re-introduction to JavaScript][2] covers much of the concepts covered
+MDN's [A re-introduction to JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript) covers much of the concepts covered
 here in more detail. This guide has quite deliberately only covered the
 JavaScript language itself; if you want to learn more about how to use
-JavaScript in web pages, start by learning about the [Document Object Model][3].
+JavaScript in web pages, start by learning about the [Document Object Model](https://developer.mozilla.org/en-US/docs/Using_the_W3C_DOM_Level_1_Core).
 
-[JavaScript Garden][5] is an in-depth guide of all the counter-intuitive parts
+[JavaScript Garden](https://shamansir.github.io/JavaScript-Garden/) is an in-depth guide of all the counter-intuitive parts
 of the language.
 
-[JavaScript: The Definitive Guide][6] is a classic guide and reference book.
+[JavaScript: The Definitive Guide](https://www.amazon.com/gp/product/0596805527/) is a classic guide and reference book.
 
-[Eloquent JavaScript][8] by Marijn Haverbeke is an excellent JS book/ebook with
+[Eloquent JavaScript](https://eloquentjavascript.net/) by Marijn Haverbeke is an excellent JS book/ebook with
 attached terminal
 
-[JavaScript: The Right Way][10] is a guide intended to introduce new developers
-to JavaScript and help experienced developers learn more about its best practices.
-
-[javascript.info][11] is a modern JavaScript tutorial covering the basics (core language and working with a browser)
-as well as advanced topics with concise explanations.
-
-
-In addition to direct contributors to this article, some content is adapted from
-Louie Dinh's Python tutorial on this site, and the [JS Tutorial][7] on the
-Mozilla Developer Network.
-
-
-[1]: https://developer.mozilla.org/en-US/docs/Web/JavaScript
-[2]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript
-[3]: https://developer.mozilla.org/en-US/docs/Using_the_W3C_DOM_Level_1_Core
-[5]: https://shamansir.github.io/JavaScript-Garden/
-[6]: http://www.amazon.com/gp/product/0596805527/
-[7]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript
-[8]: https://www.javascripttutorial.net/
-[8]: http://eloquentjavascript.net/
-[10]: http://jstherightway.org/
-[11]: https://javascript.info/
+[javascript.info](https://javascript.info/) is a modern JavaScript tutorial covering the basics (core language and working with a browser)
+as well as advanced topics with concise explanations.