Added content for HTML (#2270)

content/roadmaps/100-frontend/content/101-html/100-learn-the-basics.md

@@ -4,5 +4,6 @@ HTML stands for HyperText Markup Language. It is used on the frontend and gives
 
 <ResourceGroupTitle>Free Content</ResourceGroupTitle>
 <BadgeLink badgeText='Read' colorScheme='yellow' href='https://www.w3schools.com/html/html_intro.asp'>W3Schools: Learn HTML</BadgeLink>
+<BadgeLink badgeText='Read' colorScheme='yellow' href='https://developer.mozilla.org/en-US/docs/Learn/HTML/Introduction_to_HTML/Getting_started'>MDN Docs: Getting Started with HTML </BadgeLink>
 <BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=pQN-pnXPaVg'>HTML Full Course - Build a Website Tutorial</BadgeLink>
 <BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=qz0aGYrrlhU'>HTML Tutorial for Beginners: HTML Crash Course</BadgeLink>