Update readme.md

Author: Shakil-Shahadat

readme.md

@@ -111,7 +111,7 @@ Thin books which you can get through in a few days.
 
 ## DOM related
 
-- [DOM Enlightenment](http://domenlightenment.com) - A whole book about how to access an manipulate the DOM without a library.
+- [DOM Enlightenment](https://domenlightenment.com/) - A whole book about how to access and manipulate the DOM without a library.
 - [You Might Not Need jQuery](http://youmightnotneedjquery.com) - Get plain JavaScript code snippets (and see their jQuery equivalents).
 - [Traversing the DOM with JavaScript](https://zellwk.com/blog/dom-traversals/) - A tutorial featuring native methods to traverse the DOM.