hari70a add sass cheatsheet (#7624)

* hari70a add sass cheatsheet

* lint: solve warnings + add creators

Co-authored-by: Hariraj A <harunachalam@contractor.ea.com>
Co-authored-by: David Ordás <3125580+davorpa@users.noreply.github.com>

more/free-programming-cheatsheets.md

@@ -135,6 +135,7 @@
 * [GRID: A simple visual cheatsheet for CSS Grid Layout](https://grid.malven.co) - Chris Malven (HTML)
 * [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)
 
 
 ### IDE and editors