Update index.md (#37573)

docs: fix incorrect link for Codeacademy course

Author: Gitrhyme

files/en-us/learn_web_development/core/structuring_content/index.md

@@ -71,7 +71,7 @@ These tutorials are not part of the learning pathway, but they are interesting n
   - : [Scrimba's](https://scrimba.com?via=mdn) _Learn HTML and CSS_ course teaches you HTML and CSS through building and deploying five awesome projects, with fun interactive lessons and challenges taught by knowledgeable teachers.
 - [The basics of semantic HTML](https://v2.scrimba.com/the-frontend-developer-career-path-c0j/~0xid?via=mdn), Scrimba <sup>_MDN Curriculum partner_</sup>
   - : This interactive lesson provides a useful description of HTML, with particular emphasis on why the _semantic_ aspect of it is important.
-- [Learn HTML](https://v2.scrimba.com/the-frontend-developer-career-path-c0j/~0xid?via=mdn), Codecademy
+- [Learn HTML](https://www.codecademy.com/learn/learn-html), Codecademy
   - : Another useful (and free resource) for learning HTML basics.
 
 {{NextMenu("Learn_web_development/Core/Structuring_content/Basic_HTML_syntax", "Learn_web_development/Core")}}