Add SEO cheatsheet (#7752)

* feat: Add SEO cheatsheet

* fix: Remove site name

Co-authored-by: Hariraj A <harunachalam@contractor.ea.com>

more/free-programming-cheatsheets.md

@@ -147,6 +147,7 @@
 * [HTML & CSS Emmet Cheat Sheet](https://docs.emmet.io/cheat-sheet/) - Emmet Documentation (HTML, [PDF]( https://docs.emmet.io/cheatsheet-a5.pdf))
 * [HTML CheatSheet](https://htmlcheatsheet.com) - htmlcheatsheet.com (HTML, [PDF](https://htmlcheatsheet.com/HTML-Cheat-Sheet.pdf))
 * [SCSS CheatSheet](https://devhints.io/sass) - devhints, Rico Santa Cruz (HTML)
+* [SEO CheatSheet](https://learn-the-web.algonquindesign.ca/topics/seo-cheat-sheet/) - Algonquin Design (HTML)
 
 
 ### IDE and editors