Update 101-css.md (#1025)

Adding codecademy CSS courses

content/roadmaps/101-backend/content/101-basic-frontend/101-css.md

@@ -10,3 +10,5 @@ CSS or Cascading Style Sheets is the language used to style the frontend of any
 <BadgeLink colorScheme='green' badgeText='Course' href='https://www.youtube.com/watch?v=D-h8L5hgW-w'>HTML and CSS Tutorial</BadgeLink>
 <BadgeLink colorScheme='green' badgeText='Course' href='https://www.youtube.com/watch?v=FqmB-Zj2-PA'>CSS Masterclass - Tutorial & Course for Beginners</BadgeLink>
 <BadgeLink colorScheme='green' badgeText='Course' href='href=https://flexbox.io/'>What The Flexbox!</BadgeLink>
+<BadgeLink colorScheme='green' badgeText='Course' href='https://www.codecademy.com/learn/learn-css'>Learn CSS | Codecademy</BadgeLink>
+<BadgeLink colorScheme='green' badgeText='Course' href='https://www.codecademy.com/learn/learn-intermediate-css'>Learn Intermediate CSS | Codecademy</BadgeLink>