Adding first content (#1634)

* Adding first content

* Update content/roadmaps/106-javascript/content/104-javascript-data-structures/101-keyed-collections/100-map.md

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

content/roadmaps/106-javascript/content/104-javascript-data-structures/101-keyed-collections/100-map.md

@@ -1 +1,7 @@
-# Map
+# Map
+
+[Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map) is a collection of keyed data items, just like an `Object`. But the main difference is that `Map` allows keys of any type.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map'>Map - Keyed Collections</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://javascript.info/map-set#map'>Map Data Type</BadgeLink>