Update 104-accessibility.md (#953)

* Update 104-accessibility.md

* Append the resource

* Update badge text

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/100-frontend/content/101-html/104-accessibility.md

@@ -3,3 +3,5 @@ Web accessibility means that websites, tools, and technologies are designed and
 
 <ResourceGroupTitle>Free Content</ResourceGroupTitle>
 <BadgeLink badgeText='Watch' href='https://youtube.com/playlist?list=PLNYkxOF6rcICWx0C9LVWWVqvHlYJyqw7g'>Complete Playlist on Accessibility</BadgeLink>
+<BadgeLink badgeText='Read' colorScheme='yellow' href='https://www.w3schools.com/accessibility/index.php'>Accessibility Tutorial
+</BadgeLink>