Added Course playlist (#1774)

I found one best playlist that covers almost all the topics of Nextjs in short time, so sharing it here!

content/roadmaps/103-react/content/102-react-ecosystem/101-ssr/100-next-js.md

@@ -5,6 +5,7 @@ Next.js is an open-source development framework built on top of Node.js enabling
 <ResourceGroupTitle>Free Resources</ResourceGroupTitle>
 <BadgeLink colorScheme='blue' badgeText='Website' href='https://nextjs.org/'>Official Website</BadgeLink>
 <BadgeLink colorScheme='blue' badgeText='Docs' href='https://nextjs.org/docs/getting-started'>Official Docs for Getting Started</BadgeLink>
+<BadgeLink colorScheme='green' badgeText='Course' href='https://www.youtube.com/watch?v=9P8mASSREYM&list=PLC3y8-rFHvwgC9mj0qv972IO5DmD-H0ZH'>Next.js Full course</BadgeLink>
 <BadgeLink colorScheme='purple' badgeText='Watch' href='https://masteringnextjs.com/'>Mastering Next.js</BadgeLink>
 <BadgeLink colorScheme='purple' badgeText='Watch' href='https://youtu.be/1WmNXEVia8I'>Next.js for Beginners - freeCodeCamp</BadgeLink>
 <BadgeLink colorScheme='yellow' badgeText='Handbook' href='https://www.freecodecamp.org/news/the-next-js-handbook/'>The Next.js Handbook — freeCodeCamp</BadgeLink>